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>

32 files changed, 0 insertions, 32 deletions

diff --git a/rt/aio_cancel.c b/rt/aio_cancel.c
index 5934205..464cc1d 100644
--- a/rt/aio_cancel.c
+++ b/rt/aio_cancel.c
@@ -1,7 +1,6 @@
 /* Cancel requests associated with given file descriptor.
    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/rt/aio_error.c b/rt/aio_error.c
index 0e82283..2abe755 100644
--- a/rt/aio_error.c
+++ b/rt/aio_error.c
@@ -1,7 +1,6 @@
 /* Return error status of asynchronous I/O request.
    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/rt/aio_fsync.c b/rt/aio_fsync.c
index 73b906a..f74b94f 100644
--- a/rt/aio_fsync.c
+++ b/rt/aio_fsync.c
@@ -1,7 +1,6 @@
 /* Synchronize I/O in given file descriptor.
    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/rt/aio_misc.c b/rt/aio_misc.c
index acbd4f3..df98b5d 100644
--- a/rt/aio_misc.c
+++ b/rt/aio_misc.c
@@ -1,7 +1,6 @@
 /* Handle general operations.
    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/rt/aio_notify.c b/rt/aio_notify.c
index 0fa84f2..a78f184 100644
--- a/rt/aio_notify.c
+++ b/rt/aio_notify.c
@@ -1,7 +1,6 @@
 /* Notify initiator of AIO request.
    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/rt/aio_read.c b/rt/aio_read.c
index 61cf8bc..7f53163 100644
--- a/rt/aio_read.c
+++ b/rt/aio_read.c
@@ -1,7 +1,6 @@
 /* Asynchronous read.
    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/rt/aio_read64.c b/rt/aio_read64.c
index 3aa169f..519fb6d 100644
--- a/rt/aio_read64.c
+++ b/rt/aio_read64.c
@@ -1,7 +1,6 @@
 /* Asynchronous read, 64bit offset version.
    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/rt/aio_return.c b/rt/aio_return.c
index a7a0b14..a20ea9d 100644
--- a/rt/aio_return.c
+++ b/rt/aio_return.c
@@ -1,7 +1,6 @@
 /* Return exit value of asynchronous I/O request.
    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/rt/aio_suspend.c b/rt/aio_suspend.c
index 29f01d1..9887e9d 100644
--- a/rt/aio_suspend.c
+++ b/rt/aio_suspend.c
@@ -1,7 +1,6 @@
 /* Suspend until termination of a requests.
    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/rt/aio_write.c b/rt/aio_write.c
index 5cf7c67..4c7f3c7 100644
--- a/rt/aio_write.c
+++ b/rt/aio_write.c
@@ -1,7 +1,6 @@
 /* Asynchronous write.
    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/rt/aio_write64.c b/rt/aio_write64.c
index 5660fa5..b276cd8 100644
--- a/rt/aio_write64.c
+++ b/rt/aio_write64.c
@@ -1,7 +1,6 @@
 /* Asynchronous read, 64bit offset version.
    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/rt/lio_listio-common.c b/rt/lio_listio-common.c
index aa4ee5f..d91b97c 100644
--- a/rt/lio_listio-common.c
+++ b/rt/lio_listio-common.c
@@ -1,7 +1,6 @@
 /* Enqueue and list of read or write requests.  Common code template.
    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/rt/timer_create.c b/rt/timer_create.c
index 2808f5b..89427c4 100644
--- a/rt/timer_create.c
+++ b/rt/timer_create.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Kaz Kylheku <kaz@ashi.footprints.net>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public License as
diff --git a/rt/timer_delete.c b/rt/timer_delete.c
index c6f6d97..c6e0914 100644
--- a/rt/timer_delete.c
+++ b/rt/timer_delete.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Kaz Kylheku <kaz@ashi.footprints.net>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public License as
diff --git a/rt/timer_getoverr.c b/rt/timer_getoverr.c
index c1952f8..d490ae6 100644
--- a/rt/timer_getoverr.c
+++ b/rt/timer_getoverr.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Kaz Kylheku <kaz@ashi.footprints.net>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public License as
diff --git a/rt/timer_gettime.c b/rt/timer_gettime.c
index dd3b4a6..58f9e8c 100644
--- a/rt/timer_gettime.c
+++ b/rt/timer_gettime.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Kaz Kylheku <kaz@ashi.footprints.net>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public License as
diff --git a/rt/timer_settime.c b/rt/timer_settime.c
index c05adf1..366765f 100644
--- a/rt/timer_settime.c
+++ b/rt/timer_settime.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Kaz Kylheku <kaz@ashi.footprints.net>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public License as
diff --git a/rt/tst-aio.c b/rt/tst-aio.c
index 48f4e89..de811ec 100644
--- a/rt/tst-aio.c
+++ b/rt/tst-aio.c
@@ -1,7 +1,6 @@
 /* Tests for AIO in librt.
    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/rt/tst-aio2.c b/rt/tst-aio2.c
index 82575cb..fdaa79f 100644
--- a/rt/tst-aio2.c
+++ b/rt/tst-aio2.c
@@ -1,7 +1,6 @@
 /* Test for notification mechanism in lio_listio.
    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/rt/tst-aio64.c b/rt/tst-aio64.c
index c735345..a54e4ff 100644
--- a/rt/tst-aio64.c
+++ b/rt/tst-aio64.c
@@ -1,7 +1,6 @@
 /* Tests for 64bit AIO in librt.
    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/rt/tst-mqueue.h b/rt/tst-mqueue.h
index c28e4fb..0f9560a 100644
--- a/rt/tst-mqueue.h
+++ b/rt/tst-mqueue.h
@@ -1,7 +1,6 @@
 /* Common code for message queue passing tests.
    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/rt/tst-mqueue1.c b/rt/tst-mqueue1.c
index 76ed292..6338c4d 100644
--- a/rt/tst-mqueue1.c
+++ b/rt/tst-mqueue1.c
@@ -1,7 +1,6 @@
 /* Test message queue passing.
    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/rt/tst-mqueue2.c b/rt/tst-mqueue2.c
index d59d747..dee2f62 100644
--- a/rt/tst-mqueue2.c
+++ b/rt/tst-mqueue2.c
@@ -1,7 +1,6 @@
 /* Test message queue passing.
    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/rt/tst-mqueue3.c b/rt/tst-mqueue3.c
index b3c3ac1..251d652 100644
--- a/rt/tst-mqueue3.c
+++ b/rt/tst-mqueue3.c
@@ -1,7 +1,6 @@
 /* Test SIGEV_THREAD handling for POSIX message queues.
    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/rt/tst-mqueue4.c b/rt/tst-mqueue4.c
index a91524b..578d3b3 100644
--- a/rt/tst-mqueue4.c
+++ b/rt/tst-mqueue4.c
@@ -1,7 +1,6 @@
 /* Test message queue passing.
    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/rt/tst-mqueue5.c b/rt/tst-mqueue5.c
index a4b1762..37e13a6 100644
--- a/rt/tst-mqueue5.c
+++ b/rt/tst-mqueue5.c
@@ -1,7 +1,6 @@
 /* Test mq_notify.
    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/rt/tst-mqueue6.c b/rt/tst-mqueue6.c
index 88c1cfc..812891a 100644
--- a/rt/tst-mqueue6.c
+++ b/rt/tst-mqueue6.c
@@ -1,7 +1,6 @@
 /* Test mq_notify.
    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/rt/tst-mqueue7.c b/rt/tst-mqueue7.c
index b7871e8..96a2919 100644
--- a/rt/tst-mqueue7.c
+++ b/rt/tst-mqueue7.c
@@ -1,7 +1,6 @@
 /* Test all open message queues descriptors are closed during exec*.
    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/rt/tst-mqueue8.c b/rt/tst-mqueue8.c
index e827fdc..8b1d400 100644
--- a/rt/tst-mqueue8.c
+++ b/rt/tst-mqueue8.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/rt/tst-mqueue9.c b/rt/tst-mqueue9.c
index f1dc67d..472b9de 100644
--- a/rt/tst-mqueue9.c
+++ b/rt/tst-mqueue9.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/rt/tst-shm.c b/rt/tst-shm.c
index 19c5b35..466e968 100644
--- a/rt/tst-shm.c
+++ b/rt/tst-shm.c
@@ -1,7 +1,6 @@
 /* Test program for POSIX shm_* 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/rt/tst-timer4.c b/rt/tst-timer4.c
index 5065435..2bfebb9 100644
--- a/rt/tst-timer4.c
+++ b/rt/tst-timer4.c
@@ -1,7 +1,6 @@
 /* Tests for POSIX timer implementation.
    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 License as