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>

31 files changed, 0 insertions, 36 deletions

diff --git a/login/endutxent.c b/login/endutxent.c
index 0029132..101d904 100644
--- a/login/endutxent.c
+++ b/login/endutxent.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 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/login/forkpty.c b/login/forkpty.c
index 79f9846..ab23fc5 100644
--- a/login/forkpty.c
+++ b/login/forkpty.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 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/login/getpt.c b/login/getpt.c
index 9b71765..0343e67 100644
--- a/login/getpt.c
+++ b/login/getpt.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 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/login/getutent.c b/login/getutent.c
index c2428bf..e235c5c 100644
--- a/login/getutent.c
+++ b/login/getutent.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@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/login/getutent_r.c b/login/getutent_r.c
index 58d3d5f..4f4cedb 100644
--- a/login/getutent_r.c
+++ b/login/getutent_r.c
@@ -1,7 +1,5 @@
 /* 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 Paul Janzen <pcj@primenet.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/login/getutid.c b/login/getutid.c
index d986b9d..8834849 100644
--- a/login/getutid.c
+++ b/login/getutid.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@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/login/getutid_r.c b/login/getutid_r.c
index 68f40a6..912556e 100644
--- a/login/getutid_r.c
+++ b/login/getutid_r.c
@@ -1,7 +1,5 @@
 /* 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 Paul Janzen <pcj@primenet.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/login/getutline.c b/login/getutline.c
index 2c8320c..eaf1f3f 100644
--- a/login/getutline.c
+++ b/login/getutline.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@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/login/getutline_r.c b/login/getutline_r.c
index 39b8a58..1092b69 100644
--- a/login/getutline_r.c
+++ b/login/getutline_r.c
@@ -1,7 +1,5 @@
 /* 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 Paul Janzen <pcj@primenet.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/login/getutxent.c b/login/getutxent.c
index a6794ba..b4e1d65 100644
--- a/login/getutxent.c
+++ b/login/getutxent.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 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/login/getutxid.c b/login/getutxid.c
index ae3b9fe..de9e4aa 100644
--- a/login/getutxid.c
+++ b/login/getutxid.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 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/login/getutxline.c b/login/getutxline.c
index 274716b..4b5dc8f 100644
--- a/login/getutxline.c
+++ b/login/getutxline.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 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/login/grantpt.c b/login/grantpt.c
index 9390966..3f86f2e 100644
--- a/login/grantpt.c
+++ b/login/grantpt.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 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/login/login.c b/login/login.c
index c95b984..b2617c4 100644
--- a/login/login.c
+++ b/login/login.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@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/login/logout.c b/login/logout.c
index bf78e09..eaedd89 100644
--- a/login/logout.c
+++ b/login/logout.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@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/login/logwtmp.c b/login/logwtmp.c
index 8f3e8fa..87ac656 100644
--- a/login/logwtmp.c
+++ b/login/logwtmp.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@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/login/openpty.c b/login/openpty.c
index 1527757..aff90e6 100644
--- a/login/openpty.c
+++ b/login/openpty.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 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/login/programs/pt_chown.c b/login/programs/pt_chown.c
index ee2fbd5..f7470a2 100644
--- a/login/programs/pt_chown.c
+++ b/login/programs/pt_chown.c
@@ -1,7 +1,6 @@
 /* pt_chmod - helper program for `grantpt'.
    Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by C. Scott Ananian <cananian@alumni.princeton.edu>, 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/login/programs/utmpdump.c b/login/programs/utmpdump.c
index b17156e..69c8868 100644
--- a/login/programs/utmpdump.c
+++ b/login/programs/utmpdump.c
@@ -1,7 +1,6 @@
 /* utmpdump - dump utmp-like files.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 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/login/ptsname.c b/login/ptsname.c
index ae94fbd..b4db871 100644
--- a/login/ptsname.c
+++ b/login/ptsname.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 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/login/pututxline.c b/login/pututxline.c
index 8b38f1f..9d00bbd 100644
--- a/login/pututxline.c
+++ b/login/pututxline.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 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/login/setutxent.c b/login/setutxent.c
index 63be342..177bb4a 100644
--- a/login/setutxent.c
+++ b/login/setutxent.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 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/login/tst-ptsname.c b/login/tst-ptsname.c
index 9de8dc8..316abac 100644
--- a/login/tst-ptsname.c
+++ b/login/tst-ptsname.c
@@ -1,7 +1,6 @@
 /* Test for ptsname/ptsname_r.
    Copyright (C) 2014-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Aurelien Jarno <aurelien@aurel32.net>, 2014.
 
    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/login/tst-utmp.c b/login/tst-utmp.c
index bcd6e17..c6821af 100644
--- a/login/tst-utmp.c
+++ b/login/tst-utmp.c
@@ -1,7 +1,6 @@
 /* Tests for UTMP functions.
    Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 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/login/unlockpt.c b/login/unlockpt.c
index 1a8e4b4..b9414e5 100644
--- a/login/unlockpt.c
+++ b/login/unlockpt.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 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/login/updwtmp.c b/login/updwtmp.c
index 0558198..a2df63c 100644
--- a/login/updwtmp.c
+++ b/login/updwtmp.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 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/login/updwtmpx.c b/login/updwtmpx.c
index ba06645..ebee643 100644
--- a/login/updwtmpx.c
+++ b/login/updwtmpx.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 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/login/utmp-private.h b/login/utmp-private.h
index 00632ce..b512ee3 100644
--- a/login/utmp-private.h
+++ b/login/utmp-private.h
@@ -1,8 +1,6 @@
 /* Internal definitions and declarations for UTMP functions.
    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 Paul Janzen <pcj@primenet.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/login/utmp_file.c b/login/utmp_file.c
index 8c0b3a0..9cbe4ca 100644
--- a/login/utmp_file.c
+++ b/login/utmp_file.c
@@ -1,7 +1,5 @@
 /* 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 Paul Janzen <pcj@primenet.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/login/utmpname.c b/login/utmpname.c
index a645445..205645d 100644
--- a/login/utmpname.c
+++ b/login/utmpname.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 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/login/utmpxname.c b/login/utmpxname.c
index 5245374..e38549a 100644
--- a/login/utmpxname.c
+++ b/login/utmpxname.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 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