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, 0 insertions, 68 deletions

diff --git a/sysdeps/ieee754/ldbl-128/e_acoshl.c b/sysdeps/ieee754/ldbl-128/e_acoshl.c
index c3cb73a..54434eb 100644
--- a/sysdeps/ieee754/ldbl-128/e_acoshl.c
+++ b/sysdeps/ieee754/ldbl-128/e_acoshl.c
@@ -1,5 +1,4 @@
 /* e_acoshl.c -- long double version of e_acosh.c.
- * Conversion to long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/e_atan2l.c b/sysdeps/ieee754/ldbl-128/e_atan2l.c
index 142060d..cdf0817 100644
--- a/sysdeps/ieee754/ldbl-128/e_atan2l.c
+++ b/sysdeps/ieee754/ldbl-128/e_atan2l.c
@@ -1,5 +1,4 @@
 /* e_atan2l.c -- long double version of e_atan2.c.
- * Conversion to long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/e_atanhl.c b/sysdeps/ieee754/ldbl-128/e_atanhl.c
index 68a5220..80a133f 100644
--- a/sysdeps/ieee754/ldbl-128/e_atanhl.c
+++ b/sysdeps/ieee754/ldbl-128/e_atanhl.c
@@ -1,6 +1,4 @@
 /* s_atanhl.c -- long double version of s_atan.c.
- * Conversion to long double by Ulrich Drepper,
- * Cygnus Support, drepper@cygnus.com.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/e_expl.c b/sysdeps/ieee754/ldbl-128/e_expl.c
index a5cb919..1394821 100644
--- a/sysdeps/ieee754/ldbl-128/e_expl.c
+++ b/sysdeps/ieee754/ldbl-128/e_expl.c
@@ -1,9 +1,6 @@
 /* Quad-precision floating point e^x.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jj@ultra.linux.cz>
-   Partly based on double-precision code
-   by Geoffrey Keating <geoffk@ozemail.com.au>
 
    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/ieee754/ldbl-128/e_fmodl.c b/sysdeps/ieee754/ldbl-128/e_fmodl.c
index c927859..b60d353 100644
--- a/sysdeps/ieee754/ldbl-128/e_fmodl.c
+++ b/sysdeps/ieee754/ldbl-128/e_fmodl.c
@@ -1,5 +1,4 @@
 /* e_fmodl.c -- long double version of e_fmod.c.
- * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 /*
  * ====================================================
diff --git a/sysdeps/ieee754/ldbl-128/e_gammal_r.c b/sysdeps/ieee754/ldbl-128/e_gammal_r.c
index 0cc5056..e09d7fd 100644
--- a/sysdeps/ieee754/ldbl-128/e_gammal_r.c
+++ b/sysdeps/ieee754/ldbl-128/e_gammal_r.c
@@ -1,8 +1,6 @@
 /* Implementation of gamma function according to ISO C.
    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 and
-		  Jakub Jelinek <jj@ultra.linux.cz, 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/sysdeps/ieee754/ldbl-128/e_hypotl.c b/sysdeps/ieee754/ldbl-128/e_hypotl.c
index cc3cc4a..cd4fdbc 100644
--- a/sysdeps/ieee754/ldbl-128/e_hypotl.c
+++ b/sysdeps/ieee754/ldbl-128/e_hypotl.c
@@ -1,5 +1,4 @@
 /* e_hypotl.c -- long double version of e_hypot.c.
- * Conversion to long double by Jakub Jelinek, jakub@redhat.com.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/e_ilogbl.c b/sysdeps/ieee754/ldbl-128/e_ilogbl.c
index 9effe63..1d81a26 100644
--- a/sysdeps/ieee754/ldbl-128/e_ilogbl.c
+++ b/sysdeps/ieee754/ldbl-128/e_ilogbl.c
@@ -1,5 +1,4 @@
 /* s_ilogbl.c -- long double version of s_ilogb.c.
- * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/e_rem_pio2l.c b/sysdeps/ieee754/ldbl-128/e_rem_pio2l.c
index f20e7e9..a9d5329 100644
--- a/sysdeps/ieee754/ldbl-128/e_rem_pio2l.c
+++ b/sysdeps/ieee754/ldbl-128/e_rem_pio2l.c
@@ -1,7 +1,6 @@
 /* Quad-precision floating point argument reduction.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jj@ultra.linux.cz>
 
    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/ieee754/ldbl-128/e_remainderl.c b/sysdeps/ieee754/ldbl-128/e_remainderl.c
index ade586a..07a15c2 100644
--- a/sysdeps/ieee754/ldbl-128/e_remainderl.c
+++ b/sysdeps/ieee754/ldbl-128/e_remainderl.c
@@ -1,5 +1,4 @@
 /* e_fmodl.c -- long double version of e_fmod.c.
- * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 /*
  * ====================================================
diff --git a/sysdeps/ieee754/ldbl-128/e_sinhl.c b/sysdeps/ieee754/ldbl-128/e_sinhl.c
index 976fcea..20d0103 100644
--- a/sysdeps/ieee754/ldbl-128/e_sinhl.c
+++ b/sysdeps/ieee754/ldbl-128/e_sinhl.c
@@ -1,6 +1,4 @@
 /* e_sinhl.c -- long double version of e_sinh.c.
- * Conversion to long double by Ulrich Drepper,
- * Cygnus Support, drepper@cygnus.com.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/k_cosl.c b/sysdeps/ieee754/ldbl-128/k_cosl.c
index b0f8cf8..85ce84e 100644
--- a/sysdeps/ieee754/ldbl-128/k_cosl.c
+++ b/sysdeps/ieee754/ldbl-128/k_cosl.c
@@ -1,7 +1,6 @@
 /* Quad-precision floating point cosine on <-pi/4,pi/4>.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jj@ultra.linux.cz>
 
    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/ieee754/ldbl-128/k_sincosl.c b/sysdeps/ieee754/ldbl-128/k_sincosl.c
index d04b307..e94c7ed 100644
--- a/sysdeps/ieee754/ldbl-128/k_sincosl.c
+++ b/sysdeps/ieee754/ldbl-128/k_sincosl.c
@@ -1,7 +1,6 @@
 /* Quad-precision floating point sine and cosine on <-pi/4,pi/4>.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jj@ultra.linux.cz>
 
    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/ieee754/ldbl-128/k_sinl.c b/sysdeps/ieee754/ldbl-128/k_sinl.c
index 634b72e..70d7e88 100644
--- a/sysdeps/ieee754/ldbl-128/k_sinl.c
+++ b/sysdeps/ieee754/ldbl-128/k_sinl.c
@@ -1,7 +1,6 @@
 /* Quad-precision floating point sine on <-pi/4,pi/4>.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jj@ultra.linux.cz>
 
    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/ieee754/ldbl-128/s_asinhl.c b/sysdeps/ieee754/ldbl-128/s_asinhl.c
index a733ee7..0252424 100644
--- a/sysdeps/ieee754/ldbl-128/s_asinhl.c
+++ b/sysdeps/ieee754/ldbl-128/s_asinhl.c
@@ -1,6 +1,4 @@
 /* s_asinhl.c -- long double version of s_asinh.c.
- * Conversion to long double by Ulrich Drepper,
- * Cygnus Support, drepper@cygnus.com.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/s_ceill.c b/sysdeps/ieee754/ldbl-128/s_ceill.c
index c5d98e1..f363d2f 100644
--- a/sysdeps/ieee754/ldbl-128/s_ceill.c
+++ b/sysdeps/ieee754/ldbl-128/s_ceill.c
@@ -1,5 +1,4 @@
 /* s_ceill.c -- long double version of s_ceil.c.
- * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/s_copysignl.c b/sysdeps/ieee754/ldbl-128/s_copysignl.c
index a8b0639..d512d9a 100644
--- a/sysdeps/ieee754/ldbl-128/s_copysignl.c
+++ b/sysdeps/ieee754/ldbl-128/s_copysignl.c
@@ -1,5 +1,4 @@
 /* s_copysignl.c -- long double version of s_copysign.c.
- * Conversion to long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/s_cosl.c b/sysdeps/ieee754/ldbl-128/s_cosl.c
index b315abc..9879e7e 100644
--- a/sysdeps/ieee754/ldbl-128/s_cosl.c
+++ b/sysdeps/ieee754/ldbl-128/s_cosl.c
@@ -1,5 +1,4 @@
 /* s_cosl.c -- long double version of s_cos.c.
- * Conversion to long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/s_fabsl.c b/sysdeps/ieee754/ldbl-128/s_fabsl.c
index 8d55453..7e08980 100644
--- a/sysdeps/ieee754/ldbl-128/s_fabsl.c
+++ b/sysdeps/ieee754/ldbl-128/s_fabsl.c
@@ -1,5 +1,4 @@
 /* s_fabsl.c -- long double version of s_fabs.c.
- * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/s_finitel.c b/sysdeps/ieee754/ldbl-128/s_finitel.c
index d42b378..bfdd88f 100644
--- a/sysdeps/ieee754/ldbl-128/s_finitel.c
+++ b/sysdeps/ieee754/ldbl-128/s_finitel.c
@@ -1,5 +1,4 @@
 /* s_finitel.c -- long double version of s_finite.c.
- * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/s_floorl.c b/sysdeps/ieee754/ldbl-128/s_floorl.c
index 0475120..02eb663 100644
--- a/sysdeps/ieee754/ldbl-128/s_floorl.c
+++ b/sysdeps/ieee754/ldbl-128/s_floorl.c
@@ -1,5 +1,4 @@
 /* s_floorl.c -- long double version of s_floor.c.
- * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/s_fma.c b/sysdeps/ieee754/ldbl-128/s_fma.c
index 58c55ea..47673da 100644
--- a/sysdeps/ieee754/ldbl-128/s_fma.c
+++ b/sysdeps/ieee754/ldbl-128/s_fma.c
@@ -1,7 +1,6 @@
 /* Compute x * y + z as ternary operation.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2010.
 
    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/ieee754/ldbl-128/s_fmal.c b/sysdeps/ieee754/ldbl-128/s_fmal.c
index e509774..0f5f5f1 100644
--- a/sysdeps/ieee754/ldbl-128/s_fmal.c
+++ b/sysdeps/ieee754/ldbl-128/s_fmal.c
@@ -1,7 +1,6 @@
 /* Compute x * y + z as ternary operation.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2010.
 
    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/ieee754/ldbl-128/s_fpclassifyl.c b/sysdeps/ieee754/ldbl-128/s_fpclassifyl.c
index 16519ac..95540f0 100644
--- a/sysdeps/ieee754/ldbl-128/s_fpclassifyl.c
+++ b/sysdeps/ieee754/ldbl-128/s_fpclassifyl.c
@@ -1,8 +1,6 @@
 /* Return classification value corresponding to argument.
    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 and
-		  Jakub Jelinek <jj@ultra.linux.cz>, 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/sysdeps/ieee754/ldbl-128/s_frexpl.c b/sysdeps/ieee754/ldbl-128/s_frexpl.c
index bab0779..e4db093 100644
--- a/sysdeps/ieee754/ldbl-128/s_frexpl.c
+++ b/sysdeps/ieee754/ldbl-128/s_frexpl.c
@@ -1,5 +1,4 @@
 /* s_frexpl.c -- long double version of s_frexp.c.
- * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/s_isinfl.c b/sysdeps/ieee754/ldbl-128/s_isinfl.c
index a41e8cf..baa9a98 100644
--- a/sysdeps/ieee754/ldbl-128/s_isinfl.c
+++ b/sysdeps/ieee754/ldbl-128/s_isinfl.c
@@ -1,6 +1,4 @@
 /*
- * Written by J.T. Conklin <jtc@netbsd.org>.
- * Change for long double by Jakub Jelinek <jj@ultra.linux.cz>
  * Public domain.
  */
 
diff --git a/sysdeps/ieee754/ldbl-128/s_isnanl.c b/sysdeps/ieee754/ldbl-128/s_isnanl.c
index 8ebef00..26c70fb 100644
--- a/sysdeps/ieee754/ldbl-128/s_isnanl.c
+++ b/sysdeps/ieee754/ldbl-128/s_isnanl.c
@@ -1,5 +1,4 @@
 /* s_isnanl.c -- long double version of s_isnan.c.
- * Conversion to long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/s_llrintl.c b/sysdeps/ieee754/ldbl-128/s_llrintl.c
index 4c53093..24db19a 100644
--- a/sysdeps/ieee754/ldbl-128/s_llrintl.c
+++ b/sysdeps/ieee754/ldbl-128/s_llrintl.c
@@ -2,8 +2,6 @@
    direction.
    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 and
-		  Jakub Jelinek <jj@ultra.linux.cz>, 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/sysdeps/ieee754/ldbl-128/s_llroundl.c b/sysdeps/ieee754/ldbl-128/s_llroundl.c
index 2f37adb..64d7e1e 100644
--- a/sysdeps/ieee754/ldbl-128/s_llroundl.c
+++ b/sysdeps/ieee754/ldbl-128/s_llroundl.c
@@ -1,8 +1,6 @@
 /* Round long double value to long long int.
    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 and
-		  Jakub Jelinek <jj@ultra.linux.cz>, 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/sysdeps/ieee754/ldbl-128/s_logbl.c b/sysdeps/ieee754/ldbl-128/s_logbl.c
index 9264fe6..1c56eda 100644
--- a/sysdeps/ieee754/ldbl-128/s_logbl.c
+++ b/sysdeps/ieee754/ldbl-128/s_logbl.c
@@ -1,5 +1,4 @@
 /* s_logbl.c -- long double version of s_logb.c.
- * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/s_lrintl.c b/sysdeps/ieee754/ldbl-128/s_lrintl.c
index 2c8d769..fc2dc29 100644
--- a/sysdeps/ieee754/ldbl-128/s_lrintl.c
+++ b/sysdeps/ieee754/ldbl-128/s_lrintl.c
@@ -2,8 +2,6 @@
    direction.
    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 and
-		  Jakub Jelinek <jj@ultra.linux.cz>, 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/sysdeps/ieee754/ldbl-128/s_lroundl.c b/sysdeps/ieee754/ldbl-128/s_lroundl.c
index a39fb81..4b856b3 100644
--- a/sysdeps/ieee754/ldbl-128/s_lroundl.c
+++ b/sysdeps/ieee754/ldbl-128/s_lroundl.c
@@ -1,8 +1,6 @@
 /* Round long double value to long int.
    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 and
-		  Jakub Jelinek <jj@ultra.linux.cz>, 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/sysdeps/ieee754/ldbl-128/s_modfl.c b/sysdeps/ieee754/ldbl-128/s_modfl.c
index 2d0a2d7..92041b7 100644
--- a/sysdeps/ieee754/ldbl-128/s_modfl.c
+++ b/sysdeps/ieee754/ldbl-128/s_modfl.c
@@ -1,5 +1,4 @@
 /* s_modfl.c -- long double version of s_modf.c.
- * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/s_nearbyintl.c b/sysdeps/ieee754/ldbl-128/s_nearbyintl.c
index 8d26786..d76d015 100644
--- a/sysdeps/ieee754/ldbl-128/s_nearbyintl.c
+++ b/sysdeps/ieee754/ldbl-128/s_nearbyintl.c
@@ -1,5 +1,4 @@
 /* s_nearbyintl.c -- long double version of s_nearbyint.c.
- * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/s_nextafterl.c b/sysdeps/ieee754/ldbl-128/s_nextafterl.c
index 60fdae6..90e71e3 100644
--- a/sysdeps/ieee754/ldbl-128/s_nextafterl.c
+++ b/sysdeps/ieee754/ldbl-128/s_nextafterl.c
@@ -1,5 +1,4 @@
 /* s_nextafterl.c -- long double version of s_nextafter.c.
- * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/s_remquol.c b/sysdeps/ieee754/ldbl-128/s_remquol.c
index 88bfbae..2b753a1 100644
--- a/sysdeps/ieee754/ldbl-128/s_remquol.c
+++ b/sysdeps/ieee754/ldbl-128/s_remquol.c
@@ -1,8 +1,6 @@
 /* Compute remainder and a congruent to the quotient.
    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 and
-		  Jakub Jelinek <jj@ultra.linux.cz>, 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/sysdeps/ieee754/ldbl-128/s_rintl.c b/sysdeps/ieee754/ldbl-128/s_rintl.c
index 16965f9..072ed8e 100644
--- a/sysdeps/ieee754/ldbl-128/s_rintl.c
+++ b/sysdeps/ieee754/ldbl-128/s_rintl.c
@@ -1,5 +1,4 @@
 /* s_rintl.c -- long double version of s_rint.c.
- * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/s_roundl.c b/sysdeps/ieee754/ldbl-128/s_roundl.c
index 0bc3581..5a8cec1 100644
--- a/sysdeps/ieee754/ldbl-128/s_roundl.c
+++ b/sysdeps/ieee754/ldbl-128/s_roundl.c
@@ -1,8 +1,6 @@
 /* Round long double to integer away from zero.
    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 and
-		  Jakub Jelinek <jj@ultra.linux.cz>, 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/sysdeps/ieee754/ldbl-128/s_scalblnl.c b/sysdeps/ieee754/ldbl-128/s_scalblnl.c
index 590b2ca..08b0fb1 100644
--- a/sysdeps/ieee754/ldbl-128/s_scalblnl.c
+++ b/sysdeps/ieee754/ldbl-128/s_scalblnl.c
@@ -1,5 +1,4 @@
 /* s_scalblnl.c -- long double version of s_scalbn.c.
- * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /* @(#)s_scalbn.c 5.1 93/09/24 */
diff --git a/sysdeps/ieee754/ldbl-128/s_scalbnl.c b/sysdeps/ieee754/ldbl-128/s_scalbnl.c
index ad9a0b1..94155a5 100644
--- a/sysdeps/ieee754/ldbl-128/s_scalbnl.c
+++ b/sysdeps/ieee754/ldbl-128/s_scalbnl.c
@@ -1,5 +1,4 @@
 /* s_scalbnl.c -- long double version of s_scalbn.c.
- * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /* @(#)s_scalbn.c 5.1 93/09/24 */
diff --git a/sysdeps/ieee754/ldbl-128/s_signbitl.c b/sysdeps/ieee754/ldbl-128/s_signbitl.c
index 59cfda4..34e5639 100644
--- a/sysdeps/ieee754/ldbl-128/s_signbitl.c
+++ b/sysdeps/ieee754/ldbl-128/s_signbitl.c
@@ -1,7 +1,6 @@
 /* Return nonzero value if number is negative.
    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/sysdeps/ieee754/ldbl-128/s_sincosl.c b/sysdeps/ieee754/ldbl-128/s_sincosl.c
index b230dd2..ef5a020 100644
--- a/sysdeps/ieee754/ldbl-128/s_sincosl.c
+++ b/sysdeps/ieee754/ldbl-128/s_sincosl.c
@@ -1,8 +1,6 @@
 /* Compute sine and cosine of argument.
    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 and
-		  Jakub Jelinek <jj@ultra.linux.cz>.
 
    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/ieee754/ldbl-128/s_sinl.c b/sysdeps/ieee754/ldbl-128/s_sinl.c
index 773b2fa..4578766 100644
--- a/sysdeps/ieee754/ldbl-128/s_sinl.c
+++ b/sysdeps/ieee754/ldbl-128/s_sinl.c
@@ -1,5 +1,4 @@
 /* s_sinl.c -- long double version of s_sin.c.
- * Conversion to long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /*
diff --git a/sysdeps/ieee754/ldbl-128/s_tanhl.c b/sysdeps/ieee754/ldbl-128/s_tanhl.c
index fc309da..a14ac06 100644
--- a/sysdeps/ieee754/ldbl-128/s_tanhl.c
+++ b/sysdeps/ieee754/ldbl-128/s_tanhl.c
@@ -1,6 +1,4 @@
 /* s_tanhl.c -- long double version of s_tanh.c.
- * Conversion to long double by Ulrich Drepper,
- * Cygnus Support, drepper@cygnus.com.
  */
 
 /*
@@ -14,9 +12,6 @@
  * ====================================================
  */
 
-/* Changes for 128-bit long double contributed by
-   Stephen L. Moshier <moshier@na-net.ornl.gov> */
-
 /* tanhl(x)
  * Return the Hyperbolic Tangent of x
  *
diff --git a/sysdeps/ieee754/ldbl-128/s_tanl.c b/sysdeps/ieee754/ldbl-128/s_tanl.c
index 77db10f..c765312 100644
--- a/sysdeps/ieee754/ldbl-128/s_tanl.c
+++ b/sysdeps/ieee754/ldbl-128/s_tanl.c
@@ -1,5 +1,4 @@
 /* s_tanl.c -- long double version of s_tan.c.
- * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
  */
 
 /* @(#)s_tan.c 5.1 93/09/24 */
diff --git a/sysdeps/ieee754/ldbl-128/s_truncl.c b/sysdeps/ieee754/ldbl-128/s_truncl.c
index 4619f0e..ac63c36 100644
--- a/sysdeps/ieee754/ldbl-128/s_truncl.c
+++ b/sysdeps/ieee754/ldbl-128/s_truncl.c
@@ -1,8 +1,6 @@
 /* Truncate argument to nearest integral value not larger than the argument.
    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 and
-		  Jakub Jelinek <jj@ultra.linux.cz>, 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/sysdeps/ieee754/ldbl-128/t_expl.h b/sysdeps/ieee754/ldbl-128/t_expl.h
index adbb99c..c413972 100644
--- a/sysdeps/ieee754/ldbl-128/t_expl.h
+++ b/sysdeps/ieee754/ldbl-128/t_expl.h
@@ -1,7 +1,6 @@
 /* Accurate table for expl().
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jj@ultra.linux.cz>
 
    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/ieee754/ldbl-128/t_sincosl.c b/sysdeps/ieee754/ldbl-128/t_sincosl.c
index a138dfe..5b889d3 100644
--- a/sysdeps/ieee754/ldbl-128/t_sincosl.c
+++ b/sysdeps/ieee754/ldbl-128/t_sincosl.c
@@ -1,7 +1,6 @@
 /* Quad-precision floating point sine and cosine tables.
    Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jj@ultra.linux.cz>
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public