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>

29 files changed, 1 insertions, 31 deletions

diff --git a/debug/backtrace.c b/debug/backtrace.c
index 187d911..4018eaa 100644
--- a/debug/backtrace.c
+++ b/debug/backtrace.c
@@ -1,7 +1,6 @@
 /* Return backtrace of current program state.
    Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
 
    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/debug/backtracesyms.c b/debug/backtracesyms.c
index df40b8d..a19cb1e 100644
--- a/debug/backtracesyms.c
+++ b/debug/backtracesyms.c
@@ -1,7 +1,6 @@
 /* Return list with names for address in backtrace.
    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/debug/backtracesymsfd.c b/debug/backtracesymsfd.c
index 0d9057a..9a75d64 100644
--- a/debug/backtracesymsfd.c
+++ b/debug/backtracesymsfd.c
@@ -1,7 +1,6 @@
 /* Write formatted list with names for addresses in backtrace to a file.
    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/debug/catchsegv.sh b/debug/catchsegv.sh
index 0c4b819..e431d44 100755
--- a/debug/catchsegv.sh
+++ b/debug/catchsegv.sh
@@ -1,7 +1,6 @@
 #!/bin/sh
 # 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/debug/confstr_chk.c b/debug/confstr_chk.c
index c4f0af3..ff11393 100644
--- a/debug/confstr_chk.c
+++ b/debug/confstr_chk.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2005-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@readhat.com>, 20055.
 
    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/debug/explicit_bzero_chk.c b/debug/explicit_bzero_chk.c
index 3b19d84..849c73f 100644
--- a/debug/explicit_bzero_chk.c
+++ b/debug/explicit_bzero_chk.c
@@ -1,7 +1,6 @@
 /* Generic implementation of __explicit_bzero_chk.
    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/debug/memcpy_chk.c b/debug/memcpy_chk.c
index 0ccd44e..89759eb 100644
--- a/debug/memcpy_chk.c
+++ b/debug/memcpy_chk.c
@@ -2,7 +2,6 @@
    has been copied with error checking.  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/debug/memmove_chk.c b/debug/memmove_chk.c
index 2d19dec..1b2b58c 100644
--- a/debug/memmove_chk.c
+++ b/debug/memmove_chk.c
@@ -2,7 +2,6 @@
    has been copied with error checking.  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/debug/mempcpy_chk.c b/debug/mempcpy_chk.c
index 63718e8..5e81f65 100644
--- a/debug/mempcpy_chk.c
+++ b/debug/mempcpy_chk.c
@@ -3,7 +3,6 @@
    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/debug/noophooks.c b/debug/noophooks.c
index 9aed34b..20fb4d5 100644
--- a/debug/noophooks.c
+++ b/debug/noophooks.c
@@ -1,7 +1,6 @@
 /* Noop hooks for the instrumenting functions.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.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/debug/obprintf_chk.c b/debug/obprintf_chk.c
index 13fe2c1..a6298c0 100644
--- a/debug/obprintf_chk.c
+++ b/debug/obprintf_chk.c
@@ -1,7 +1,6 @@
 /* Print output of stream to given obstack.
    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/debug/pcprofile.c b/debug/pcprofile.c
index 2ce4588..b1a8c00 100644
--- a/debug/pcprofile.c
+++ b/debug/pcprofile.c
@@ -1,7 +1,6 @@
 /* Profile PC and write result to FIFO.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.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/debug/pcprofiledump.c b/debug/pcprofiledump.c
index a213c12..bf01392 100644
--- a/debug/pcprofiledump.c
+++ b/debug/pcprofiledump.c
@@ -1,7 +1,6 @@
 /* Dump information generated by PC profiling.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.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/debug/segfault.c b/debug/segfault.c
index 1873022..b6c0fac 100644
--- a/debug/segfault.c
+++ b/debug/segfault.c
@@ -1,7 +1,6 @@
 /* Catch segmentation faults and print backtrace.
    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/debug/test-stpcpy_chk.c b/debug/test-stpcpy_chk.c
index 96ad600..c626c2d 100644
--- a/debug/test-stpcpy_chk.c
+++ b/debug/test-stpcpy_chk.c
@@ -1,7 +1,6 @@
 /* Test and measure stpcpy checking 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/debug/test-strcpy_chk.c b/debug/test-strcpy_chk.c
index 80c0748..62dbfa1 100644
--- a/debug/test-strcpy_chk.c
+++ b/debug/test-strcpy_chk.c
@@ -1,7 +1,6 @@
 /* Test and measure __strcpy_chk 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/debug/tst-chk1.c b/debug/tst-chk1.c
index 6c1d32c..6712770 100644
--- a/debug/tst-chk1.c
+++ b/debug/tst-chk1.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2004-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
 
    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/debug/tst-longjmp_chk2.c b/debug/tst-longjmp_chk2.c
index 23d3436..1810ab4 100644
--- a/debug/tst-longjmp_chk2.c
+++ b/debug/tst-longjmp_chk2.c
@@ -1,6 +1,4 @@
-/* Verify longjmp fortify checking does not reject signal stacks.
-
-   Test case mostly written by Paolo Bonzini <pbonzini@redhat.com>.  */
+/* Verify longjmp fortify checking does not reject signal stacks.  */
 #include <assert.h>
 #include <setjmp.h>
 #include <signal.h>
diff --git a/debug/wcpcpy_chk.c b/debug/wcpcpy_chk.c
index 0e1d381..a60fa31 100644
--- a/debug/wcpcpy_chk.c
+++ b/debug/wcpcpy_chk.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/debug/wcpncpy_chk.c b/debug/wcpncpy_chk.c
index 79ed4bc..5a689bd 100644
--- a/debug/wcpncpy_chk.c
+++ b/debug/wcpncpy_chk.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>, 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/debug/wcscat_chk.c b/debug/wcscat_chk.c
index 964ac5a..eaa1390 100644
--- a/debug/wcscat_chk.c
+++ b/debug/wcscat_chk.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>, 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/debug/wcscpy_chk.c b/debug/wcscpy_chk.c
index dfe475d..9498a7b 100644
--- a/debug/wcscpy_chk.c
+++ b/debug/wcscpy_chk.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>, 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/debug/wcsncat_chk.c b/debug/wcsncat_chk.c
index c442acc..795661e 100644
--- a/debug/wcsncat_chk.c
+++ b/debug/wcsncat_chk.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>, 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/debug/wcsncpy_chk.c b/debug/wcsncpy_chk.c
index 0a19191..d4c1f26 100644
--- a/debug/wcsncpy_chk.c
+++ b/debug/wcsncpy_chk.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>, 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/debug/wmemcpy_chk.c b/debug/wmemcpy_chk.c
index 7e1b87d..a2db3bb 100644
--- a/debug/wmemcpy_chk.c
+++ b/debug/wmemcpy_chk.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.org>, 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/debug/wmemmove_chk.c b/debug/wmemmove_chk.c
index 16ae34d..c29cfbb 100644
--- a/debug/wmemmove_chk.c
+++ b/debug/wmemmove_chk.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>
 
    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/debug/wmempcpy_chk.c b/debug/wmempcpy_chk.c
index 8fbfd80..f5055e5 100644
--- a/debug/wmempcpy_chk.c
+++ b/debug/wmempcpy_chk.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.org>, 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/debug/wmemset_chk.c b/debug/wmemset_chk.c
index ebb331f..2f34f03 100644
--- a/debug/wmemset_chk.c
+++ b/debug/wmemset_chk.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.org>, 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/debug/xtrace.sh b/debug/xtrace.sh
index 9697fbe..d49b1fa 100755
--- a/debug/xtrace.sh
+++ b/debug/xtrace.sh
@@ -1,7 +1,6 @@
 #!/bin/bash
 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
 # This file is part of the GNU C Library.
-# Contributed by Ulrich Drepper <drepper@gnu.org>, 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