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>

15 files changed, 0 insertions, 17 deletions

diff --git a/sysdeps/hppa/fpu/bits/fenv.h b/sysdeps/hppa/fpu/bits/fenv.h
index 17df5bc109..f521e08da0 100644
--- a/sysdeps/hppa/fpu/bits/fenv.h
+++ b/sysdeps/hppa/fpu/bits/fenv.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Huggins-Daines <dhd@debian.org>
 
    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/sysdeps/hppa/fpu/fclrexcpt.c b/sysdeps/hppa/fpu/fclrexcpt.c
index b1b3cb4695..619981607c 100644
--- a/sysdeps/hppa/fpu/fclrexcpt.c
+++ b/sysdeps/hppa/fpu/fclrexcpt.c
@@ -1,7 +1,6 @@
 /* Clear given exceptions in current floating-point environment.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Huggins-Daines <dhd@debian.org>, 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/sysdeps/hppa/fpu/fedisblxcpt.c b/sysdeps/hppa/fpu/fedisblxcpt.c
index f1542c45cb..6efb211ca9 100644
--- a/sysdeps/hppa/fpu/fedisblxcpt.c
+++ b/sysdeps/hppa/fpu/fedisblxcpt.c
@@ -1,7 +1,6 @@
 /* Disable floating-point exceptions.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Huggins-Daines <dhd@debian.org>, 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/sysdeps/hppa/fpu/feenablxcpt.c b/sysdeps/hppa/fpu/feenablxcpt.c
index fafbb36efd..45344cd0cc 100644
--- a/sysdeps/hppa/fpu/feenablxcpt.c
+++ b/sysdeps/hppa/fpu/feenablxcpt.c
@@ -1,7 +1,6 @@
 /* Enable floating-point exceptions.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Huggins-Daines <dhd@debian.org>, 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/sysdeps/hppa/fpu/fegetenv.c b/sysdeps/hppa/fpu/fegetenv.c
index 47facf90a2..219746b3ea 100644
--- a/sysdeps/hppa/fpu/fegetenv.c
+++ b/sysdeps/hppa/fpu/fegetenv.c
@@ -1,7 +1,6 @@
 /* Store current floating-point environment.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Huggins-Daines <dhd@debian.org>, 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/sysdeps/hppa/fpu/fegetexcept.c b/sysdeps/hppa/fpu/fegetexcept.c
index bb2a0f0588..a1779bd2b4 100644
--- a/sysdeps/hppa/fpu/fegetexcept.c
+++ b/sysdeps/hppa/fpu/fegetexcept.c
@@ -1,7 +1,6 @@
 /* Get enabled floating-point exceptions.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Huggins-Daines <dhd@debian.org>, 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/sysdeps/hppa/fpu/fegetround.c b/sysdeps/hppa/fpu/fegetround.c
index d3e025ba46..0976dd916a 100644
--- a/sysdeps/hppa/fpu/fegetround.c
+++ b/sysdeps/hppa/fpu/fegetround.c
@@ -1,7 +1,6 @@
 /* Return current rounding direction.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Huggins-Daines <dhd@debian.org>, 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/sysdeps/hppa/fpu/feholdexcpt.c b/sysdeps/hppa/fpu/feholdexcpt.c
index 2ea7d4bd7e..a1c6592a97 100644
--- a/sysdeps/hppa/fpu/feholdexcpt.c
+++ b/sysdeps/hppa/fpu/feholdexcpt.c
@@ -1,7 +1,6 @@
 /* Store current floating-point environment and clear exceptions.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Huggins-Daines <dhd@debian.org>, 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/sysdeps/hppa/fpu/fesetenv.c b/sysdeps/hppa/fpu/fesetenv.c
index 85c0f99c39..08de113eef 100644
--- a/sysdeps/hppa/fpu/fesetenv.c
+++ b/sysdeps/hppa/fpu/fesetenv.c
@@ -1,9 +1,6 @@
 /* Install given floating-point environment.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Huggins-Daines <dhd@debian.org>, 2000
-   Based on the m68k version 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/sysdeps/hppa/fpu/fesetround.c b/sysdeps/hppa/fpu/fesetround.c
index 7e8172e688..921b8b78df 100644
--- a/sysdeps/hppa/fpu/fesetround.c
+++ b/sysdeps/hppa/fpu/fesetround.c
@@ -1,7 +1,6 @@
 /* Set current rounding direction.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Huggins-Daines <dhd@debian.org>, 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/sysdeps/hppa/fpu/feupdateenv.c b/sysdeps/hppa/fpu/feupdateenv.c
index f6ea4339af..13dc0d8592 100644
--- a/sysdeps/hppa/fpu/feupdateenv.c
+++ b/sysdeps/hppa/fpu/feupdateenv.c
@@ -1,7 +1,6 @@
 /* Install given floating-point environment and raise exceptions.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Huggins-Daines <dhd@debian.org>, 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/sysdeps/hppa/fpu/fgetexcptflg.c b/sysdeps/hppa/fpu/fgetexcptflg.c
index 0d704b5ec8..4224b0f105 100644
--- a/sysdeps/hppa/fpu/fgetexcptflg.c
+++ b/sysdeps/hppa/fpu/fgetexcptflg.c
@@ -1,7 +1,6 @@
 /* Store current representation for exceptions.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Huggins-Daines <dhd@debian.org>, 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/sysdeps/hppa/fpu/fraiseexcpt.c b/sysdeps/hppa/fpu/fraiseexcpt.c
index 44295d713d..bc891ce9e6 100644
--- a/sysdeps/hppa/fpu/fraiseexcpt.c
+++ b/sysdeps/hppa/fpu/fraiseexcpt.c
@@ -1,7 +1,6 @@
 /* Raise given exceptions.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Huggins-Daines <dhd@debian.org>
 
    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/sysdeps/hppa/fpu/fsetexcptflg.c b/sysdeps/hppa/fpu/fsetexcptflg.c
index 59caf97b71..d3947e6dd1 100644
--- a/sysdeps/hppa/fpu/fsetexcptflg.c
+++ b/sysdeps/hppa/fpu/fsetexcptflg.c
@@ -1,7 +1,6 @@
 /* Set floating-point environment exception handling.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Huggins-Daines <dhd@debian.org>, 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/sysdeps/hppa/fpu/ftestexcept.c b/sysdeps/hppa/fpu/ftestexcept.c
index 5149e979d9..ecc82bfc68 100644
--- a/sysdeps/hppa/fpu/ftestexcept.c
+++ b/sysdeps/hppa/fpu/ftestexcept.c
@@ -1,7 +1,6 @@
 /* Test exception in current environment.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by David Huggins-Daines <dhd@debian.org>, 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