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>

48 files changed, 1 insertions, 49 deletions

diff --git a/posix/bug-ga1.c b/posix/bug-ga1.c
index c46ab43fd1..4d86849f74 100644
--- a/posix/bug-ga1.c
+++ b/posix/bug-ga1.c
@@ -1,4 +1,3 @@
-/* Test case by Anders Carlsson <andersca@gnome.org>.  */
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netdb.h>
diff --git a/posix/bug-ga2.c b/posix/bug-ga2.c
index 712e40de48..87e7582056 100644
--- a/posix/bug-ga2.c
+++ b/posix/bug-ga2.c
@@ -1,4 +1,3 @@
-/* Test case by Sam Varshavchik <mrsam@courier-mta.com>.  */
 #include <mcheck.h>
 #include <netdb.h>
 #include <stdio.h>
diff --git a/posix/bug-regex1.c b/posix/bug-regex1.c
index 4432a90b81..b8cf97c8ce 100644
--- a/posix/bug-regex1.c
+++ b/posix/bug-regex1.c
@@ -1,4 +1,3 @@
-/* Test case by Jim Meyering <jim@meyering.net>.  */
 #include <locale.h>
 #include <stdio.h>
 #include <string.h>
diff --git a/posix/bug-regex10.c b/posix/bug-regex10.c
index f6ddcd7318..b7f53e5570 100644
--- a/posix/bug-regex10.c
+++ b/posix/bug-regex10.c
@@ -1,7 +1,6 @@
 /* Test for re_match with non-zero start.
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@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/posix/bug-regex11.c b/posix/bug-regex11.c
index 402453e402..539f5f25c7 100644
--- a/posix/bug-regex11.c
+++ b/posix/bug-regex11.c
@@ -1,7 +1,6 @@
 /* Regular expression tests.
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@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/posix/bug-regex12.c b/posix/bug-regex12.c
index ae2ff614ab..384223ee8a 100644
--- a/posix/bug-regex12.c
+++ b/posix/bug-regex12.c
@@ -1,7 +1,6 @@
 /* Regular expression tests.
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@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/posix/bug-regex13.c b/posix/bug-regex13.c
index 3c66445011..11d0436caa 100644
--- a/posix/bug-regex13.c
+++ b/posix/bug-regex13.c
@@ -1,7 +1,6 @@
 /* Regular expression tests.
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Isamu Hasegawa <isamu@yamato.ibm.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/posix/bug-regex14.c b/posix/bug-regex14.c
index 2dfe7c9d68..b3c1174ed0 100644
--- a/posix/bug-regex14.c
+++ b/posix/bug-regex14.c
@@ -1,7 +1,6 @@
 /* Tests re_comp and re_exec.
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Isamu Hasegawa <isamu@yamato.ibm.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/posix/bug-regex17.c b/posix/bug-regex17.c
index 8ae77e6e6c..04aa3f2582 100644
--- a/posix/bug-regex17.c
+++ b/posix/bug-regex17.c
@@ -1,7 +1,6 @@
 /* German regular expression tests.
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@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/posix/bug-regex18.c b/posix/bug-regex18.c
index b4fbce909d..b3627e1edf 100644
--- a/posix/bug-regex18.c
+++ b/posix/bug-regex18.c
@@ -1,7 +1,6 @@
 /* Turkish regular expression tests.
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@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/posix/bug-regex19.c b/posix/bug-regex19.c
index b3fee0a730..001827c3a8 100644
--- a/posix/bug-regex19.c
+++ b/posix/bug-regex19.c
@@ -1,7 +1,6 @@
 /* Regular expression tests.
    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/posix/bug-regex2.c b/posix/bug-regex2.c
index a4e29705c0..975159f7cc 100644
--- a/posix/bug-regex2.c
+++ b/posix/bug-regex2.c
@@ -1,7 +1,6 @@
 /* Test for memory handling in regex.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   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/posix/bug-regex20.c b/posix/bug-regex20.c
index 4d1ebd1802..36d2c95242 100644
--- a/posix/bug-regex20.c
+++ b/posix/bug-regex20.c
@@ -1,7 +1,6 @@
 /* Test for UTF-8 regular expression optimizations.
    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/posix/bug-regex21.c b/posix/bug-regex21.c
index 28b2761d6e..b947832bd2 100644
--- a/posix/bug-regex21.c
+++ b/posix/bug-regex21.c
@@ -1,7 +1,6 @@
 /* Test for memory leaks in regcomp.
    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/posix/bug-regex22.c b/posix/bug-regex22.c
index 2b332017ae..d28427ddb3 100644
--- a/posix/bug-regex22.c
+++ b/posix/bug-regex22.c
@@ -1,7 +1,6 @@
 /* Test re.translate != NULL.
    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/posix/bug-regex23.c b/posix/bug-regex23.c
index 9ace0fd097..60b39cced2 100644
--- a/posix/bug-regex23.c
+++ b/posix/bug-regex23.c
@@ -1,7 +1,6 @@
 /* Test we don't segfault on invalid UTF-8 sequence.
    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/posix/bug-regex25.c b/posix/bug-regex25.c
index dd4f0821d4..10d69801d1 100644
--- a/posix/bug-regex25.c
+++ b/posix/bug-regex25.c
@@ -1,7 +1,6 @@
 /* Test re_search in multibyte locale other than UTF-8.
    Copyright (C) 2006-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2006.
 
    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/posix/bug-regex26.c b/posix/bug-regex26.c
index 16d84d8614..84ff76a0a8 100644
--- a/posix/bug-regex26.c
+++ b/posix/bug-regex26.c
@@ -1,7 +1,6 @@
 /* Test re_search with dotless i.
    Copyright (C) 2006-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2006.
 
    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/posix/bug-regex27.c b/posix/bug-regex27.c
index 8405dace8a..b7e6194c2f 100644
--- a/posix/bug-regex27.c
+++ b/posix/bug-regex27.c
@@ -1,7 +1,6 @@
 /* Test REG_NEWLINE.
    Copyright (C) 2007-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2007.
 
    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/posix/bug-regex28.c b/posix/bug-regex28.c
index 788684c522..f5ad01e4b6 100644
--- a/posix/bug-regex28.c
+++ b/posix/bug-regex28.c
@@ -1,7 +1,6 @@
 /* Test RE_HAT_LISTS_NOT_NEWLINE and RE_DOT_NEWLINE.
    Copyright (C) 2007-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2007.
 
    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/posix/bug-regex3.c b/posix/bug-regex3.c
index 546020cf36..e0cbce3834 100644
--- a/posix/bug-regex3.c
+++ b/posix/bug-regex3.c
@@ -1,7 +1,6 @@
 /* Test for case handling in regex.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@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/posix/bug-regex30.c b/posix/bug-regex30.c
index 2ee1d5ed11..53b91134ec 100644
--- a/posix/bug-regex30.c
+++ b/posix/bug-regex30.c
@@ -1,7 +1,6 @@
 /* Russian regular expression tests.
    Copyright (C) 2009-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Paolo Bonzini <pbonzini@redhat.com>, 2009.
 
    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/posix/bug-regex33.c b/posix/bug-regex33.c
index 86569465cf..1bd9b8b73a 100644
--- a/posix/bug-regex33.c
+++ b/posix/bug-regex33.c
@@ -1,7 +1,6 @@
 /* Test re_search with multi-byte characters in EUC-JP.
    Copyright (C) 2012-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Stanislav Brabec <sbrabec@suse.cz>, 2012.
 
    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/posix/bug-regex4.c b/posix/bug-regex4.c
index 8d5ae11567..86901ecaa7 100644
--- a/posix/bug-regex4.c
+++ b/posix/bug-regex4.c
@@ -1,7 +1,6 @@
 /* Test for re_search_2.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@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/posix/bug-regex6.c b/posix/bug-regex6.c
index 2bdf2126a4..324bd5199d 100644
--- a/posix/bug-regex6.c
+++ b/posix/bug-regex6.c
@@ -1,7 +1,6 @@
 /* Test for regexec.
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@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/posix/bug-regex7.c b/posix/bug-regex7.c
index 3b6f4f9dca..05c5a19df0 100644
--- a/posix/bug-regex7.c
+++ b/posix/bug-regex7.c
@@ -1,7 +1,6 @@
 /* Test for regs allocation in re_search and re_match.
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Stepan Kasal <kasal@math.cas.cz>, 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/posix/bug-regex8.c b/posix/bug-regex8.c
index 65a1c08c34..39f1debc09 100644
--- a/posix/bug-regex8.c
+++ b/posix/bug-regex8.c
@@ -1,7 +1,6 @@
 /* Test for the STOP parameter of re_match_2 and re_search_2.
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Stepan Kasal <kasal@math.cas.cz>, 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/posix/bug-regex9.c b/posix/bug-regex9.c
index 22162bb486..ce7c76038e 100644
--- a/posix/bug-regex9.c
+++ b/posix/bug-regex9.c
@@ -1,7 +1,6 @@
 /* Test for memory handling in regex.
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   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/posix/flexmember.h b/posix/flexmember.h
index 1b19a2bfd9..0811deadfa 100644
--- a/posix/flexmember.h
+++ b/posix/flexmember.h
@@ -16,9 +16,8 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.
+   <https://www.gnu.org/licenses/>.  */
 
-   Written by Paul Eggert.  */
 
 #include <stddef.h>
 
diff --git a/posix/register-atfork.c b/posix/register-atfork.c
index 6fd9e4c56a..1a3cddb867 100644
--- a/posix/register-atfork.c
+++ b/posix/register-atfork.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/posix/runptests.c b/posix/runptests.c
index a2f3f45a0a..d9b0c4dffe 100644
--- a/posix/runptests.c
+++ b/posix/runptests.c
@@ -1,7 +1,6 @@
 /* POSIX regex testsuite from IEEE 2003.2.
    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/posix/tar.h b/posix/tar.h
index 2dc47c2331..0fe95d418c 100644
--- a/posix/tar.h
+++ b/posix/tar.h
@@ -1,7 +1,6 @@
 /* Extended tar format from POSIX.1.
    Copyright (C) 1992-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Written by David J. MacKenzie.
 
    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/posix/tst-boost.c b/posix/tst-boost.c
index 94740f99b6..44ba88d316 100644
--- a/posix/tst-boost.c
+++ b/posix/tst-boost.c
@@ -1,7 +1,6 @@
 /* Regular expression tests.
    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/posix/tst-chmod.c b/posix/tst-chmod.c
index fa45467aab..0ab1e2a71e 100644
--- a/posix/tst-chmod.c
+++ b/posix/tst-chmod.c
@@ -1,7 +1,6 @@
 /* Test for chmod functions.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.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/posix/tst-dir.c b/posix/tst-dir.c
index d1050f646b..0db2317192 100644
--- a/posix/tst-dir.c
+++ b/posix/tst-dir.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/posix/tst-exec.c b/posix/tst-exec.c
index 417c97f696..60c16aae98 100644
--- a/posix/tst-exec.c
+++ b/posix/tst-exec.c
@@ -1,7 +1,6 @@
 /* Tests for exec.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.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/posix/tst-fork.c b/posix/tst-fork.c
index e242d276b0..d4b445659f 100644
--- a/posix/tst-fork.c
+++ b/posix/tst-fork.c
@@ -1,7 +1,6 @@
 /* Tests for fork.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.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/posix/tst-gnuglob-skeleton.c b/posix/tst-gnuglob-skeleton.c
index 0a11b09b66..1c1149473f 100644
--- a/posix/tst-gnuglob-skeleton.c
+++ b/posix/tst-gnuglob-skeleton.c
@@ -1,7 +1,6 @@
 /* Template for tests of the GNU extension GLOB_ALTDIRFUNC.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   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/posix/tst-pcre.c b/posix/tst-pcre.c
index b83410a531..4091a5fac7 100644
--- a/posix/tst-pcre.c
+++ b/posix/tst-pcre.c
@@ -1,7 +1,6 @@
 /* Regular expression tests.
    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/posix/tst-rxspencer.c b/posix/tst-rxspencer.c
index 0f26fa0b32..b46d551402 100644
--- a/posix/tst-rxspencer.c
+++ b/posix/tst-rxspencer.c
@@ -1,7 +1,6 @@
 /* Regular expression tests.
    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/posix/tst-spawn.c b/posix/tst-spawn.c
index c96f066c47..5d7260d463 100644
--- a/posix/tst-spawn.c
+++ b/posix/tst-spawn.c
@@ -1,7 +1,6 @@
 /* Tests for spawn.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.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/posix/tst-truncate.c b/posix/tst-truncate.c
index 7d4bf6a2e0..c498091beb 100644
--- a/posix/tst-truncate.c
+++ b/posix/tst-truncate.c
@@ -1,7 +1,6 @@
 /* Tests for ftruncate and truncate.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.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/posix/tst-truncate64.c b/posix/tst-truncate64.c
index c8193d00c8..2aa66407a2 100644
--- a/posix/tst-truncate64.c
+++ b/posix/tst-truncate64.c
@@ -1,7 +1,6 @@
 /* Tests for ftruncate64 and truncate64.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.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/posix/tst-vfork1.c b/posix/tst-vfork1.c
index 68d5221a36..282bab4cbb 100644
--- a/posix/tst-vfork1.c
+++ b/posix/tst-vfork1.c
@@ -1,7 +1,6 @@
 /* Test for vfork functions.
    Copyright (C) 2004-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@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/posix/tst-vfork2.c b/posix/tst-vfork2.c
index 65e9133143..f16bc5365b 100644
--- a/posix/tst-vfork2.c
+++ b/posix/tst-vfork2.c
@@ -1,7 +1,6 @@
 /* Test for vfork functions.
    Copyright (C) 2004-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@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/posix/tst-vfork3.c b/posix/tst-vfork3.c
index afa1f0b6ee..65f19d0426 100644
--- a/posix/tst-vfork3.c
+++ b/posix/tst-vfork3.c
@@ -1,7 +1,6 @@
 /* Test for vfork functions.
    Copyright (C) 2007-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2007.
 
    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/posix/waitid.c b/posix/waitid.c
index 32aeca1a50..54542d4253 100644
--- a/posix/waitid.c
+++ b/posix/waitid.c
@@ -1,7 +1,6 @@
 /* Stub version of waitid.
    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/posix/wordexp.c b/posix/wordexp.c
index 1f3b09f721..f50ed7fa8f 100644
--- a/posix/wordexp.c
+++ b/posix/wordexp.c
@@ -1,7 +1,6 @@
 /* POSIX.2 wordexp implementation.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Tim Waugh <tim@cyberelk.demon.co.uk>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public