Remove "Contributed by" lines

We stopped adding "Contributed by" or similar lines in sources in 2012
in favour of git logs and keeping the Contributors section of the
glibc manual up to date.  Removing these lines makes the license
header a bit more consistent across files and also removes the
possibility of error in attribution when license blocks or files are
copied across since the contributed-by lines don't actually reflect
reality in those cases.

Move all "Contributed by" and similar lines (Written by, Test by,
etc.) into a new file CONTRIBUTED-BY to retain record of these
contributions.  These contributors are also mentioned in
manual/contrib.texi, so we just maintain this additional record as a
courtesy to the earlier developers.

The following scripts were used to filter a list of files to edit in
place and to clean up the CONTRIBUTED-BY file respectively.  These
were not added to the glibc sources because they're not expected to be
of any use in future given that this is a one time task:

https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc
https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02

Reviewed-by: Carlos O'Donell <carlos@redhat.com>

61 files changed, 0 insertions, 71 deletions

diff --git a/string/argz-addsep.c b/string/argz-addsep.c
index 9c19267..9b27602 100644
--- a/string/argz-addsep.c
+++ b/string/argz-addsep.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/argz-append.c b/string/argz-append.c
index e1df16c..d9623e9 100644
--- a/string/argz-append.c
+++ b/string/argz-append.c
@@ -1,7 +1,6 @@
 /* Routines for dealing with '\0' separated arg vectors.
    Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Miles Bader <miles@gnu.ai.mit.edu>
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/argz-count.c b/string/argz-count.c
index 2b68317..4311198 100644
--- a/string/argz-count.c
+++ b/string/argz-count.c
@@ -1,7 +1,6 @@
 /* Routines for dealing with '\0' separated arg vectors.
    Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Miles Bader <miles@gnu.ai.mit.edu>
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/argz-create.c b/string/argz-create.c
index f97e914..4f01f01 100644
--- a/string/argz-create.c
+++ b/string/argz-create.c
@@ -1,7 +1,6 @@
 /* Routines for dealing with '\0' separated arg vectors.
    Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Miles Bader <miles@gnu.ai.mit.edu>
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/argz-ctsep.c b/string/argz-ctsep.c
index 230ad0d..a5584e2 100644
--- a/string/argz-ctsep.c
+++ b/string/argz-ctsep.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/argz-delete.c b/string/argz-delete.c
index 1f569c6..1ddab67 100644
--- a/string/argz-delete.c
+++ b/string/argz-delete.c
@@ -1,7 +1,6 @@
 /* Routines for dealing with '\0' separated arg vectors.
    Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Miles Bader <miles@gnu.org>
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/argz-extract.c b/string/argz-extract.c
index fda4401..18d43b7 100644
--- a/string/argz-extract.c
+++ b/string/argz-extract.c
@@ -1,7 +1,6 @@
 /* Routines for dealing with '\0' separated arg vectors.
    Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Miles Bader <miles@gnu.org>
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/argz-insert.c b/string/argz-insert.c
index fdd15fe..851e18b 100644
--- a/string/argz-insert.c
+++ b/string/argz-insert.c
@@ -1,7 +1,6 @@
 /* Routines for dealing with '\0' separated arg vectors.
    Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Miles Bader <miles@gnu.ai.mit.edu>
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/argz-next.c b/string/argz-next.c
index 82597c3..f654cf1 100644
--- a/string/argz-next.c
+++ b/string/argz-next.c
@@ -1,7 +1,6 @@
 /* Iterate through the elements of an argz block.
    Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Miles Bader <miles@gnu.org>
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/argz-replace.c b/string/argz-replace.c
index 37fcc91..e8746c9 100644
--- a/string/argz-replace.c
+++ b/string/argz-replace.c
@@ -1,7 +1,6 @@
 /* String replacement in an argz vector
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Miles Bader <miles@gnu.ai.mit.edu>
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/argz-stringify.c b/string/argz-stringify.c
index a52d5f5..7c383f3 100644
--- a/string/argz-stringify.c
+++ b/string/argz-stringify.c
@@ -1,7 +1,6 @@
 /* Routines for dealing with '\0' separated arg vectors.
    Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Miles Bader <miles@gnu.org>
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/bug-strncat1.c b/string/bug-strncat1.c
index b22beba..65a7ed5 100644
--- a/string/bug-strncat1.c
+++ b/string/bug-strncat1.c
@@ -1,4 +1,3 @@
-/* Test case by Joseph S. Myers <jsm28@cam.ac.uk>.  */
 #undef __USE_STRING_INLINES
 #define __USE_STRING_INLINES
 #include <stdio.h>
diff --git a/string/bug-strpbrk1.c b/string/bug-strpbrk1.c
index 8e909a1..ca0bc11 100644
--- a/string/bug-strpbrk1.c
+++ b/string/bug-strpbrk1.c
@@ -1,4 +1,3 @@
-/* Test case by Joseph S. Myers <jsm28@cam.ac.uk>.  */
 #undef __USE_STRING_INLINES
 #define __USE_STRING_INLINES
 #include <string.h>
diff --git a/string/bug-strspn1.c b/string/bug-strspn1.c
index e3487ab..3bf2a48 100644
--- a/string/bug-strspn1.c
+++ b/string/bug-strspn1.c
@@ -1,4 +1,3 @@
-/* Test case by Joseph S. Myers <jsm28@cam.ac.uk>.  */
 #undef __USE_STRING_INLINES
 #define __USE_STRING_INLINES
 #include <string.h>
diff --git a/string/bzero.c b/string/bzero.c
index 9c6d490..4391dad 100644
--- a/string/bzero.c
+++ b/string/bzero.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Torbjorn Granlund (tege@sics.se).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/envz.c b/string/envz.c
index 09ee14f..78e3a4c 100644
--- a/string/envz.c
+++ b/string/envz.c
@@ -1,7 +1,6 @@
 /* Routines for dealing with '\0' separated environment vectors
    Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Miles Bader <miles@gnu.org>
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/ffs.c b/string/ffs.c
index ee48f8c..7bec2eb 100644
--- a/string/ffs.c
+++ b/string/ffs.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Torbjorn Granlund (tege@sics.se).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/ffsll.c b/string/ffsll.c
index ac69c93..77bd28e 100644
--- a/string/ffsll.c
+++ b/string/ffsll.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Torbjorn Granlund (tege@sics.se).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/memcpy.c b/string/memcpy.c
index b5504ae..38728a9 100644
--- a/string/memcpy.c
+++ b/string/memcpy.c
@@ -2,7 +2,6 @@
    has been copied.  Overlap is NOT handled correctly.
    Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Torbjorn Granlund (tege@sics.se).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/memmove.c b/string/memmove.c
index 71da8a6..7ce9981 100644
--- a/string/memmove.c
+++ b/string/memmove.c
@@ -2,7 +2,6 @@
    has been copied.  Overlap is handled correctly.
    Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Torbjorn Granlund (tege@sics.se).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/stratcliff.c b/string/stratcliff.c
index 71d56f3..fa18f08 100644
--- a/string/stratcliff.c
+++ b/string/stratcliff.c
@@ -1,7 +1,6 @@
 /* Test for string function add boundaries of usable memory.
    Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/strcoll.c b/string/strcoll.c
index e074c52..3ff6fd1 100644
--- a/string/strcoll.c
+++ b/string/strcoll.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Ulrich Drepper <drepper@cygnus.com>, 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/strcoll_l.c b/string/strcoll_l.c
index 5ce9baf..fb39ac7 100644
--- a/string/strcoll_l.c
+++ b/string/strcoll_l.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Ulrich Drepper <drepper@gnu.org>, 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/strlen.c b/string/strlen.c
index 5d9366c..bca6f3c 100644
--- a/string/strlen.c
+++ b/string/strlen.c
@@ -1,8 +1,5 @@
 /* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Torbjorn Granlund (tege@sics.se),
-   with help from Dan Sahlin (dan@sics.se);
-   commentary by Jim Blandy (jimb@ai.mit.edu).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/strnlen.c b/string/strnlen.c
index 99c882b..6bb9047 100644
--- a/string/strnlen.c
+++ b/string/strnlen.c
@@ -1,6 +1,5 @@
 /* Find the length of STRING, but scan at most MAXLEN characters.
    Copyright (C) 1991-2021 Free Software Foundation, Inc.
-   Contributed by Jakub Jelinek <jakub@redhat.com>.
 
    Based on strlen written by Torbjorn Granlund (tege@sics.se),
    with help from Dan Sahlin (dan@sics.se);
diff --git a/string/strxfrm.c b/string/strxfrm.c
index 4d4e481..a627a31 100644
--- a/string/strxfrm.c
+++ b/string/strxfrm.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Ulrich Drepper <drepper@cygnus.com>, 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/strxfrm_l.c b/string/strxfrm_l.c
index efee1a9..d5cf16c 100644
--- a/string/strxfrm_l.c
+++ b/string/strxfrm_l.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Ulrich Drepper <drepper@gnu.org>, 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-ffs.c b/string/test-ffs.c
index cb4268e..5433ed8 100644
--- a/string/test-ffs.c
+++ b/string/test-ffs.c
@@ -1,7 +1,5 @@
 /* Copyright (C) 1994-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
-     On-Line Applications Research Corporation.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-memccpy.c b/string/test-memccpy.c
index e0b1d5a..e86b22c 100644
--- a/string/test-memccpy.c
+++ b/string/test-memccpy.c
@@ -1,7 +1,6 @@
 /* Test and measure memccpy functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-memchr.c b/string/test-memchr.c
index ce96428..b36d311 100644
--- a/string/test-memchr.c
+++ b/string/test-memchr.c
@@ -1,7 +1,6 @@
 /* Test memchr functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-memcmp.c b/string/test-memcmp.c
index fbda26a..6ddbc05 100644
--- a/string/test-memcmp.c
+++ b/string/test-memcmp.c
@@ -1,8 +1,6 @@
 /* Test and measure memcmp functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
-   Added wmemcmp support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-memcpy.c b/string/test-memcpy.c
index c9dfc88..c9e965b 100644
--- a/string/test-memcpy.c
+++ b/string/test-memcpy.c
@@ -1,7 +1,6 @@
 /* Test and measure memcpy functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-memmem.c b/string/test-memmem.c
index 624d310..2dfe5f9 100644
--- a/string/test-memmem.c
+++ b/string/test-memmem.c
@@ -1,7 +1,6 @@
 /* Test and measure memmem functions.
    Copyright (C) 2008-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Ulrich Drepper <drepper@redhat.com>, 2008.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-memmove.c b/string/test-memmove.c
index 02f2170..a0ce8b0 100644
--- a/string/test-memmove.c
+++ b/string/test-memmove.c
@@ -1,7 +1,6 @@
 /* Test and measure memmove functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-mempcpy.c b/string/test-mempcpy.c
index f80b014..26e19a4 100644
--- a/string/test-mempcpy.c
+++ b/string/test-mempcpy.c
@@ -1,7 +1,6 @@
 /* Test and measure mempcpy functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-memrchr.c b/string/test-memrchr.c
index 1a3b9ce..cac2639 100644
--- a/string/test-memrchr.c
+++ b/string/test-memrchr.c
@@ -1,7 +1,6 @@
 /* Test and measure memrchr functions.
    Copyright (C) 2013-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-memset.c b/string/test-memset.c
index 82bfcd6..86a88cc 100644
--- a/string/test-memset.c
+++ b/string/test-memset.c
@@ -1,7 +1,6 @@
 /* Test memset functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-rawmemchr.c b/string/test-rawmemchr.c
index 085098a..872c48b 100644
--- a/string/test-rawmemchr.c
+++ b/string/test-rawmemchr.c
@@ -1,7 +1,6 @@
 /* Test and measure memchr functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-stpcpy.c b/string/test-stpcpy.c
index ec1de99..99bfa5e 100644
--- a/string/test-stpcpy.c
+++ b/string/test-stpcpy.c
@@ -1,7 +1,6 @@
 /* Test stpcpy functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-stpncpy.c b/string/test-stpncpy.c
index de11fee..4fa7ca6 100644
--- a/string/test-stpncpy.c
+++ b/string/test-stpncpy.c
@@ -1,7 +1,6 @@
 /* Test and measure stpncpy functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-strcasecmp.c b/string/test-strcasecmp.c
index b380150..420cd39 100644
--- a/string/test-strcasecmp.c
+++ b/string/test-strcasecmp.c
@@ -1,7 +1,6 @@
 /* Test and measure strcasecmp functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-strcasestr.c b/string/test-strcasestr.c
index 045156e..f27b149 100644
--- a/string/test-strcasestr.c
+++ b/string/test-strcasestr.c
@@ -1,7 +1,6 @@
 /* Test and measure strcasestr functions.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Ulrich Drepper <drepper@redhat.com>, 2010.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-strcat.c b/string/test-strcat.c
index dea1558..fe30fa1 100644
--- a/string/test-strcat.c
+++ b/string/test-strcat.c
@@ -1,7 +1,6 @@
 /* Test strcat functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-strchr.c b/string/test-strchr.c
index 6c8ca54..afdf83b 100644
--- a/string/test-strchr.c
+++ b/string/test-strchr.c
@@ -1,8 +1,6 @@
 /* Test STRCHR functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
-   Added wcschr support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>, 2011
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-strcmp.c b/string/test-strcmp.c
index 7feabab..77ae731 100644
--- a/string/test-strcmp.c
+++ b/string/test-strcmp.c
@@ -1,8 +1,6 @@
 /* Test and measure strcmp and wcscmp functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
-   Added wcscmp support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>, 2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-strcpy.c b/string/test-strcpy.c
index 4c0a04f..2243730 100644
--- a/string/test-strcpy.c
+++ b/string/test-strcpy.c
@@ -1,8 +1,6 @@
 /* Test and measure strcpy functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
-   Added wcscpy support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>, 2011
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-strcspn.c b/string/test-strcspn.c
index ef028be..3610a87 100644
--- a/string/test-strcspn.c
+++ b/string/test-strcspn.c
@@ -1,7 +1,6 @@
 /* Test strcspn functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-string.h b/string/test-string.h
index 78b66ef..8ee00a0 100644
--- a/string/test-string.h
+++ b/string/test-string.h
@@ -1,7 +1,6 @@
 /* Test and measure string and memory functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-strlen.c b/string/test-strlen.c
index c9a7afb..b8d4086 100644
--- a/string/test-strlen.c
+++ b/string/test-strlen.c
@@ -1,8 +1,6 @@
 /* Test and measure STRLEN functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
-   Added wcslen support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>, 2011
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-strncasecmp.c b/string/test-strncasecmp.c
index ace94e8..b68b919 100644
--- a/string/test-strncasecmp.c
+++ b/string/test-strncasecmp.c
@@ -1,7 +1,6 @@
 /* Test and measure strncasecmp functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-strncat.c b/string/test-strncat.c
index 37ea26e..7291243 100644
--- a/string/test-strncat.c
+++ b/string/test-strncat.c
@@ -1,6 +1,5 @@
 /* Test strncat functions.
    Copyright (C) 2011-2021 Free Software Foundation, Inc.
-   Contributed by Intel Corporation.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-strncmp.c b/string/test-strncmp.c
index 10b34de..7397eeb 100644
--- a/string/test-strncmp.c
+++ b/string/test-strncmp.c
@@ -1,7 +1,6 @@
 /* Test strncmp and wcsncmp functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-strncpy.c b/string/test-strncpy.c
index 84a3b83..a38da67 100644
--- a/string/test-strncpy.c
+++ b/string/test-strncpy.c
@@ -1,7 +1,6 @@
 /* Test strncpy functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-strnlen.c b/string/test-strnlen.c
index bb5d9b5..c2b82de 100644
--- a/string/test-strnlen.c
+++ b/string/test-strnlen.c
@@ -1,7 +1,6 @@
 /* Test strlen functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-strpbrk.c b/string/test-strpbrk.c
index 3f81c2e..aeb5b81 100644
--- a/string/test-strpbrk.c
+++ b/string/test-strpbrk.c
@@ -1,7 +1,6 @@
 /* Test and measure strpbrk functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-strrchr.c b/string/test-strrchr.c
index 9f85dc6..814f27d 100644
--- a/string/test-strrchr.c
+++ b/string/test-strrchr.c
@@ -1,9 +1,6 @@
 /* Test and measure STRCHR functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
-   Added wcsrrchr support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>,
-   2011.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-strspn.c b/string/test-strspn.c
index ccbed1c..8b54666 100644
--- a/string/test-strspn.c
+++ b/string/test-strspn.c
@@ -1,7 +1,6 @@
 /* Test and measure strspn functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/test-strstr.c b/string/test-strstr.c
index 2c40d92..8aee2c0 100644
--- a/string/test-strstr.c
+++ b/string/test-strstr.c
@@ -1,7 +1,6 @@
 /* Test and measure strstr functions.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Ulrich Drepper <drepper@redhat.com>, 2010.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/testcopy.c b/string/testcopy.c
index b8dde6f..404cf86 100644
--- a/string/testcopy.c
+++ b/string/testcopy.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1990-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Torbjorn Granlund (tege@sics.se).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/tst-bswap.c b/string/tst-bswap.c
index f79570b..ed3a518 100644
--- a/string/tst-bswap.c
+++ b/string/tst-bswap.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/string/wordcopy.c b/string/wordcopy.c
index cbac9c8..20cca6d 100644
--- a/string/wordcopy.c
+++ b/string/wordcopy.c
@@ -1,7 +1,6 @@
 /* _memcopy.c -- subroutines for memory copy functions.
    Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Torbjorn Granlund (tege@sics.se).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public