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>

51 files changed, 0 insertions, 52 deletions

diff --git a/stdlib/a64l.c b/stdlib/a64l.c
index 7da3383..3684982 100644
--- a/stdlib/a64l.c
+++ b/stdlib/a64l.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.org>, August 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/stdlib/bug-strtod.c b/stdlib/bug-strtod.c
index 5df2d40..20f08db 100644
--- a/stdlib/bug-strtod.c
+++ b/stdlib/bug-strtod.c
@@ -1,7 +1,6 @@
 /* Test to strtod etc for numbers like x000...0000.000e-nn.
    This file is part of the GNU C Library.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
 
    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/stdlib/drand48-iter.c b/stdlib/drand48-iter.c
index 0868956..75b7cd9 100644
--- a/stdlib/drand48-iter.c
+++ b/stdlib/drand48-iter.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 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/stdlib/drand48.c b/stdlib/drand48.c
index 5c62eba..a9674aa 100644
--- a/stdlib/drand48.c
+++ b/stdlib/drand48.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 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/stdlib/drand48_r.c b/stdlib/drand48_r.c
index 6415775..e5ddb73 100644
--- a/stdlib/drand48_r.c
+++ b/stdlib/drand48_r.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 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/stdlib/erand48.c b/stdlib/erand48.c
index 2af1594..95bebd2 100644
--- a/stdlib/erand48.c
+++ b/stdlib/erand48.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 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/stdlib/erand48_r.c b/stdlib/erand48_r.c
index d4a1aee..568f9e8 100644
--- a/stdlib/erand48_r.c
+++ b/stdlib/erand48_r.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 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/stdlib/fmtmsg.c b/stdlib/fmtmsg.c
index 428dad0..8bf2751 100644
--- a/stdlib/fmtmsg.c
+++ b/stdlib/fmtmsg.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
    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/stdlib/grouping.c b/stdlib/grouping.c
index d558d93..ae90b91 100644
--- a/stdlib/grouping.c
+++ b/stdlib/grouping.c
@@ -1,7 +1,6 @@
 /* Internal header for proving correct grouping in strings of numbers.
    Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 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/stdlib/grouping.h b/stdlib/grouping.h
index f7d158f..9fe23a7 100644
--- a/stdlib/grouping.h
+++ b/stdlib/grouping.h
@@ -1,7 +1,6 @@
 /* Internal header for proving correct grouping in strings of numbers.
    Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 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/stdlib/isomac.c b/stdlib/isomac.c
index 16618e4..8702ae4 100644
--- a/stdlib/isomac.c
+++ b/stdlib/isomac.c
@@ -1,7 +1,6 @@
 /* Check system header files for ISO 9899:1990 (ISO C) compliance.
    Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jens Schweikhardt <schweikh@noc.dfn.de>, 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/stdlib/jrand48.c b/stdlib/jrand48.c
index 07162bf..c8d111d 100644
--- a/stdlib/jrand48.c
+++ b/stdlib/jrand48.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 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/stdlib/jrand48_r.c b/stdlib/jrand48_r.c
index eb80586..5ae84ea 100644
--- a/stdlib/jrand48_r.c
+++ b/stdlib/jrand48_r.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 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/stdlib/l64a.c b/stdlib/l64a.c
index 84cd5ce..bebdd02 100644
--- a/stdlib/l64a.c
+++ b/stdlib/l64a.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 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/stdlib/lcong48.c b/stdlib/lcong48.c
index 55409d7..d2e80fd 100644
--- a/stdlib/lcong48.c
+++ b/stdlib/lcong48.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 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/stdlib/lcong48_r.c b/stdlib/lcong48_r.c
index 60f69d4..ccc3a43 100644
--- a/stdlib/lcong48_r.c
+++ b/stdlib/lcong48_r.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 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/stdlib/lrand48.c b/stdlib/lrand48.c
index a82c3a6..750a93f 100644
--- a/stdlib/lrand48.c
+++ b/stdlib/lrand48.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 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/stdlib/lrand48_r.c b/stdlib/lrand48_r.c
index 2abd659..42df3a3 100644
--- a/stdlib/lrand48_r.c
+++ b/stdlib/lrand48_r.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.org>, August 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/stdlib/mrand48.c b/stdlib/mrand48.c
index d234a76..5db1a07 100644
--- a/stdlib/mrand48.c
+++ b/stdlib/mrand48.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 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/stdlib/mrand48_r.c b/stdlib/mrand48_r.c
index d4cf081..1ac519f 100644
--- a/stdlib/mrand48_r.c
+++ b/stdlib/mrand48_r.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 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/stdlib/msort.c b/stdlib/msort.c
index 8750cc5..2ef2702 100644
--- a/stdlib/msort.c
+++ b/stdlib/msort.c
@@ -1,7 +1,6 @@
 /* An alternative to qsort, with an identical interface.
    This file is part of the GNU C Library.
    Copyright (C) 1992-2021 Free Software Foundation, Inc.
-   Written by Mike Haertel, September 1988.
 
    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/stdlib/nrand48.c b/stdlib/nrand48.c
index 4dde921..cc0e844 100644
--- a/stdlib/nrand48.c
+++ b/stdlib/nrand48.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 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/stdlib/nrand48_r.c b/stdlib/nrand48_r.c
index b55d763..e7d84fd 100644
--- a/stdlib/nrand48_r.c
+++ b/stdlib/nrand48_r.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 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/stdlib/qsort.c b/stdlib/qsort.c
index 23f2d28..0f6d7ff 100644
--- a/stdlib/qsort.c
+++ b/stdlib/qsort.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by Douglas C. Schmidt (schmidt@ics.uci.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/stdlib/rand_r.c b/stdlib/rand_r.c
index 30fafc0..09acb0f 100644
--- a/stdlib/rand_r.c
+++ b/stdlib/rand_r.c
@@ -1,7 +1,6 @@
 /* Reentrant random function from POSIX.1c.
    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/stdlib/seed48.c b/stdlib/seed48.c
index 0fde21d..33aae37 100644
--- a/stdlib/seed48.c
+++ b/stdlib/seed48.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 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/stdlib/seed48_r.c b/stdlib/seed48_r.c
index 95c7dda..5505c57 100644
--- a/stdlib/seed48_r.c
+++ b/stdlib/seed48_r.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 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/stdlib/srand48.c b/stdlib/srand48.c
index 86e2d53..fe1bb8a 100644
--- a/stdlib/srand48.c
+++ b/stdlib/srand48.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 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/stdlib/srand48_r.c b/stdlib/srand48_r.c
index 11b4876..5c6b47d 100644
--- a/stdlib/srand48_r.c
+++ b/stdlib/srand48_r.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 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/stdlib/strfmon.c b/stdlib/strfmon.c
index 3225431..043ab3a 100644
--- a/stdlib/strfmon.c
+++ b/stdlib/strfmon.c
@@ -1,8 +1,6 @@
 /* Formatting a monetary value according to the current locale.
    Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>
-   and Jochen Hein <Jochen.Hein@informatik.TU-Clausthal.de>, 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/stdlib/strfmon_l.c b/stdlib/strfmon_l.c
index 9e72681..1d22296 100644
--- a/stdlib/strfmon_l.c
+++ b/stdlib/strfmon_l.c
@@ -1,7 +1,6 @@
 /* Formatting a monetary value according to the given locale.
    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/stdlib/strtod.c b/stdlib/strtod.c
index 6f239c8..8c707d3 100644
--- a/stdlib/strtod.c
+++ b/stdlib/strtod.c
@@ -1,7 +1,6 @@
 /* Read decimal floating point numbers.
    This file is part of the GNU C Library.
    Copyright (C) 1995-2021 Free Software Foundation, Inc.
-   Contributed 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/stdlib/strtod_l.c b/stdlib/strtod_l.c
index 5a54d99..711a922 100644
--- a/stdlib/strtod_l.c
+++ b/stdlib/strtod_l.c
@@ -1,7 +1,6 @@
 /* Convert string representing a number to float value, using given locale.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
    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/stdlib/strtof.c b/stdlib/strtof.c
index 4f423f1..bb5e017 100644
--- a/stdlib/strtof.c
+++ b/stdlib/strtof.c
@@ -1,7 +1,6 @@
 /* Read decimal floating point numbers.
    This file is part of the GNU C Library.
    Copyright (C) 1995-2021 Free Software Foundation, Inc.
-   Contributed 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/stdlib/strtof_l.c b/stdlib/strtof_l.c
index 8227942..8aeffe9 100644
--- a/stdlib/strtof_l.c
+++ b/stdlib/strtof_l.c
@@ -1,7 +1,6 @@
 /* Convert string representing a number to float value, using given locale.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
    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/stdlib/strtol_l.c b/stdlib/strtol_l.c
index 9cc9a76..9bd5487 100644
--- a/stdlib/strtol_l.c
+++ b/stdlib/strtol_l.c
@@ -1,7 +1,6 @@
 /* Convert string representing a number to integer value, using given locale.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
    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/stdlib/strtold.c b/stdlib/strtold.c
index 0b6bdca..38a2357 100644
--- a/stdlib/strtold.c
+++ b/stdlib/strtold.c
@@ -1,7 +1,6 @@
 /* Read decimal floating point numbers.
    This file is part of the GNU C Library.
    Copyright (C) 1995-2021 Free Software Foundation, Inc.
-   Contributed 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/stdlib/strtoll_l.c b/stdlib/strtoll_l.c
index cb43623..9b5e2f8 100644
--- a/stdlib/strtoll_l.c
+++ b/stdlib/strtoll_l.c
@@ -1,7 +1,6 @@
 /* Convert string representing a number to integer value, using given locale.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
    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/stdlib/strtoul_l.c b/stdlib/strtoul_l.c
index 04fc567..f726fb5 100644
--- a/stdlib/strtoul_l.c
+++ b/stdlib/strtoul_l.c
@@ -1,7 +1,6 @@
 /* Convert string representing a number to integer value, using given locale.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
    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/stdlib/strtoull_l.c b/stdlib/strtoull_l.c
index 4fd6375..b4cb60a 100644
--- a/stdlib/strtoull_l.c
+++ b/stdlib/strtoull_l.c
@@ -1,7 +1,6 @@
 /* Convert string representing a number to integer value, using given locale.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
    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/stdlib/test-a64l.c b/stdlib/test-a64l.c
index 7da5761..cd681ff 100644
--- a/stdlib/test-a64l.c
+++ b/stdlib/test-a64l.c
@@ -1,7 +1,6 @@
 /* Test program for the l64a and a64l functions.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Schwab <schwab@suse.de>.
 
    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/stdlib/test-canon.c b/stdlib/test-canon.c
index f2263e8..29ac7d0 100644
--- a/stdlib/test-canon.c
+++ b/stdlib/test-canon.c
@@ -1,7 +1,6 @@
 /* Test program for returning the canonical absolute name of a given file.
    Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Mosberger <davidm@azstarnet.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/stdlib/test-canon2.c b/stdlib/test-canon2.c
index 2a6f45b..6d4f9d1 100644
--- a/stdlib/test-canon2.c
+++ b/stdlib/test-canon2.c
@@ -1,7 +1,6 @@
 /* Test for realpath/canonicalize function.
    Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
    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/stdlib/testmb2.c b/stdlib/testmb2.c
index 16d2846..3f75474 100644
--- a/stdlib/testmb2.c
+++ b/stdlib/testmb2.c
@@ -1,4 +1,3 @@
-/* Test case by Miloslav Trmač <mitr@volny.cz>.  */
 #include <locale.h>
 #include <stdint.h>
 #include <stdlib.h>
diff --git a/stdlib/tst-bsearch.c b/stdlib/tst-bsearch.c
index 1d44d16..941db00 100644
--- a/stdlib/tst-bsearch.c
+++ b/stdlib/tst-bsearch.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@redhat.com>, 2000.
 
    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/stdlib/tst-qsort.c b/stdlib/tst-qsort.c
index 2b26e74..81eaf09 100644
--- a/stdlib/tst-qsort.c
+++ b/stdlib/tst-qsort.c
@@ -1,4 +1,3 @@
-/* Test case by Paul Eggert <eggert@twinsun.com> */
 #include <stdio.h>
 #include <stdlib.h>
 #include <tst-stack-align.h>
diff --git a/stdlib/tst-random.c b/stdlib/tst-random.c
index 8fe0993..794d12a 100644
--- a/stdlib/tst-random.c
+++ b/stdlib/tst-random.c
@@ -1,5 +1,4 @@
 /* Test program for random(), srandom(), initstate(), setstate()
-   Written by Michael J. Fischer, August 21, 2000
    Placed in the public domain.  */
 
 /* This program primarily tests the correct functioning of srandom()
diff --git a/stdlib/tst-random2.c b/stdlib/tst-random2.c
index a1d9be5..80f9eb3 100644
--- a/stdlib/tst-random2.c
+++ b/stdlib/tst-random2.c
@@ -1,7 +1,6 @@
 /* Test initstate saving the old state.
    Copyright (C) 2005-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2005.
 
    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/stdlib/tst-system.c b/stdlib/tst-system.c
index 178808e..0546a41 100644
--- a/stdlib/tst-system.c
+++ b/stdlib/tst-system.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
    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/stdlib/tst-xpg-basename.c b/stdlib/tst-xpg-basename.c
index 23b0bb7..4b55f1a 100644
--- a/stdlib/tst-xpg-basename.c
+++ b/stdlib/tst-xpg-basename.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@suse.de>, 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/stdlib/xpg_basename.c b/stdlib/xpg_basename.c
index 4d6dc04..ec228b9 100644
--- a/stdlib/xpg_basename.c
+++ b/stdlib/xpg_basename.c
@@ -1,7 +1,6 @@
 /* Return basename of given pathname according to the weird XPG specification.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public