Update copyright dates with scripts/update-copyrights

I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master

18 files changed, 18 insertions, 18 deletions

diff --git a/sysdeps/x86/fpu/bits/fenv.h b/sysdeps/x86/fpu/bits/fenv.h
index 6cfa567..63784ef 100644
--- a/sysdeps/x86/fpu/bits/fenv.h
+++ b/sysdeps/x86/fpu/bits/fenv.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/x86/fpu/bits/math-vector.h b/sysdeps/x86/fpu/bits/math-vector.h
index 0801905..dc0bfb3 100644
--- a/sysdeps/x86/fpu/bits/math-vector.h
+++ b/sysdeps/x86/fpu/bits/math-vector.h
@@ -1,5 +1,5 @@
 /* Platform-specific SIMD declarations of math functions.
-   Copyright (C) 2014-2020 Free Software Foundation, Inc.
+   Copyright (C) 2014-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/x86/fpu/e_sqrtf128.c b/sysdeps/x86/fpu/e_sqrtf128.c
index 3eeb948..9cfefe6 100644
--- a/sysdeps/x86/fpu/e_sqrtf128.c
+++ b/sysdeps/x86/fpu/e_sqrtf128.c
@@ -1,6 +1,6 @@
 /* soft-fp sqrt for _Float128
    Return sqrt(a)
-   Copyright (C) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/x86/fpu/e_sqrtl.c b/sysdeps/x86/fpu/e_sqrtl.c
index 7ea6f52..7256a8f 100644
--- a/sysdeps/x86/fpu/e_sqrtl.c
+++ b/sysdeps/x86/fpu/e_sqrtl.c
@@ -1,5 +1,5 @@
 /* Square root function.  x86_64 long double version.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/x86/fpu/finclude/math-vector-fortran.h b/sysdeps/x86/fpu/finclude/math-vector-fortran.h
index d54af8b..311bb4e 100644
--- a/sysdeps/x86/fpu/finclude/math-vector-fortran.h
+++ b/sysdeps/x86/fpu/finclude/math-vector-fortran.h
@@ -1,5 +1,5 @@
 ! Platform-specific declarations of SIMD math functions for Fortran. -*- f90 -*-
-!   Copyright (C) 2019-2020 Free Software Foundation, Inc.
+!   Copyright (C) 2019-2021 Free Software Foundation, Inc.
 !   This file is part of the GNU C Library.
 !
 !   The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/x86/fpu/fix-fp-int-compare-invalid.h b/sysdeps/x86/fpu/fix-fp-int-compare-invalid.h
index f6b4bbe..4f7dd67 100644
--- a/sysdeps/x86/fpu/fix-fp-int-compare-invalid.h
+++ b/sysdeps/x86/fpu/fix-fp-int-compare-invalid.h
@@ -1,6 +1,6 @@
 /* Fix for missing "invalid" exceptions from floating-point
    comparisons.  x86 version.
-   Copyright (C) 2016-2020 Free Software Foundation, Inc.
+   Copyright (C) 2016-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/x86/fpu/math-barriers.h b/sysdeps/x86/fpu/math-barriers.h
index d5f2776..4d2d4d1 100644
--- a/sysdeps/x86/fpu/math-barriers.h
+++ b/sysdeps/x86/fpu/math-barriers.h
@@ -1,5 +1,5 @@
 /* Control when floating-point expressions are evaluated.  x86 version.
-   Copyright (C) 2007-2020 Free Software Foundation, Inc.
+   Copyright (C) 2007-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/x86/fpu/math_private.h b/sysdeps/x86/fpu/math_private.h
index dbeccab..6cdc6e5 100644
--- a/sysdeps/x86/fpu/math_private.h
+++ b/sysdeps/x86/fpu/math_private.h
@@ -1,5 +1,5 @@
 /* Private inline math functions for x86.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/x86/fpu/nan-pseudo-number.h b/sysdeps/x86/fpu/nan-pseudo-number.h
index ea43b17..e4e015b 100644
--- a/sysdeps/x86/fpu/nan-pseudo-number.h
+++ b/sysdeps/x86/fpu/nan-pseudo-number.h
@@ -1,5 +1,5 @@
 /* Pseudo-normal number handling.  x86 version.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/x86/fpu/powl_helper.c b/sysdeps/x86/fpu/powl_helper.c
index 5781356..04da3dc 100644
--- a/sysdeps/x86/fpu/powl_helper.c
+++ b/sysdeps/x86/fpu/powl_helper.c
@@ -1,5 +1,5 @@
 /* Implement powl for x86 using extra-precision log.
-   Copyright (C) 2012-2020 Free Software Foundation, Inc.
+   Copyright (C) 2012-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/x86/fpu/s_fpclassifyl.c b/sysdeps/x86/fpu/s_fpclassifyl.c
index a48b768..a493009 100644
--- a/sysdeps/x86/fpu/s_fpclassifyl.c
+++ b/sysdeps/x86/fpu/s_fpclassifyl.c
@@ -1,5 +1,5 @@
 /* Return classification value corresponding to argument.
-   Copyright (C) 1997-2020 Free Software Foundation, Inc.
+   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.
 
diff --git a/sysdeps/x86/fpu/s_sincosf_data.c b/sysdeps/x86/fpu/s_sincosf_data.c
index 6e38bf6..4162781 100644
--- a/sysdeps/x86/fpu/s_sincosf_data.c
+++ b/sysdeps/x86/fpu/s_sincosf_data.c
@@ -1,5 +1,5 @@
 /* Compute sine and cosine of argument.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/x86/fpu/sincosf_poly.h b/sysdeps/x86/fpu/sincosf_poly.h
index 97ef312..778b5b2 100644
--- a/sysdeps/x86/fpu/sincosf_poly.h
+++ b/sysdeps/x86/fpu/sincosf_poly.h
@@ -1,5 +1,5 @@
 /* Used by sinf, cosf and sincosf functions.  X86-64 version.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/x86/fpu/test-fenv-clear-sse.c b/sysdeps/x86/fpu/test-fenv-clear-sse.c
index 20da7c1..d7df953 100644
--- a/sysdeps/x86/fpu/test-fenv-clear-sse.c
+++ b/sysdeps/x86/fpu/test-fenv-clear-sse.c
@@ -1,6 +1,6 @@
 /* Test fesetenv (FE_DFL_ENV) and fesetenv (FE_NOMASK_ENV) clear
    exceptions (bug 19181).  SSE version.
-   Copyright (C) 2015-2020 Free Software Foundation, Inc.
+   Copyright (C) 2015-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/x86/fpu/test-fenv-sse-2.c b/sysdeps/x86/fpu/test-fenv-sse-2.c
index 91d2dfe..ac9a040 100644
--- a/sysdeps/x86/fpu/test-fenv-sse-2.c
+++ b/sysdeps/x86/fpu/test-fenv-sse-2.c
@@ -1,5 +1,5 @@
 /* Test x86-specific floating-point environment (bug 16068): SSE part.
-   Copyright (C) 2015-2020 Free Software Foundation, Inc.
+   Copyright (C) 2015-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/x86/fpu/test-fenv-sse.c b/sysdeps/x86/fpu/test-fenv-sse.c
index c9cc6ef..31a9814 100644
--- a/sysdeps/x86/fpu/test-fenv-sse.c
+++ b/sysdeps/x86/fpu/test-fenv-sse.c
@@ -1,5 +1,5 @@
 /* Test floating-point environment includes SSE state (bug 16064).
-   Copyright (C) 2014-2020 Free Software Foundation, Inc.
+   Copyright (C) 2014-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/x86/fpu/test-fenv-x87.c b/sysdeps/x86/fpu/test-fenv-x87.c
index 5fadc1d..80eae54 100644
--- a/sysdeps/x86/fpu/test-fenv-x87.c
+++ b/sysdeps/x86/fpu/test-fenv-x87.c
@@ -1,5 +1,5 @@
 /* Test x86-specific floating-point environment (bug 16068): x87 part.
-   Copyright (C) 2015-2020 Free Software Foundation, Inc.
+   Copyright (C) 2015-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/x86/fpu/test-math-vector-sincos.h b/sysdeps/x86/fpu/test-math-vector-sincos.h
index fbed7c0..0066f41 100644
--- a/sysdeps/x86/fpu/test-math-vector-sincos.h
+++ b/sysdeps/x86/fpu/test-math-vector-sincos.h
@@ -1,6 +1,6 @@
 /* Wrappers definitions for tests of ABI of vector sincos/sincosf having
    vector declaration "#pragma omp declare simd notinbranch".
-   Copyright (C) 2016-2020 Free Software Foundation, Inc.
+   Copyright (C) 2016-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or