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 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines

7 files changed, 7 insertions, 7 deletions

diff --git a/sysdeps/sparc/sparc32/fpu/e_sqrtl.c b/sysdeps/sparc/sparc32/fpu/e_sqrtl.c
index ef34b0c7ae..4593522012 100644
--- a/sysdeps/sparc/sparc32/fpu/e_sqrtl.c
+++ b/sysdeps/sparc/sparc32/fpu/e_sqrtl.c
@@ -1,5 +1,5 @@
 /* Long double square root, sparc32 version.
-   Copyright (C) 2016-2021 Free Software Foundation, Inc.
+   Copyright (C) 2016-2022 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/sparc/sparc32/fpu/s_copysign.S b/sysdeps/sparc/sparc32/fpu/s_copysign.S
index 886231a18c..54191b5391 100644
--- a/sysdeps/sparc/sparc32/fpu/s_copysign.S
+++ b/sysdeps/sparc/sparc32/fpu/s_copysign.S
@@ -1,5 +1,5 @@
 /* copysign function, sparc32 version.
-   Copyright (C) 2012-2021 Free Software Foundation, Inc.
+   Copyright (C) 2012-2022 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/sparc/sparc32/fpu/s_copysignf.S b/sysdeps/sparc/sparc32/fpu/s_copysignf.S
index 56a5b13584..ce1acfdb1b 100644
--- a/sysdeps/sparc/sparc32/fpu/s_copysignf.S
+++ b/sysdeps/sparc/sparc32/fpu/s_copysignf.S
@@ -1,5 +1,5 @@
 /* float copysign function, sparc32 version.
-   Copyright (C) 2012-2021 Free Software Foundation, Inc.
+   Copyright (C) 2012-2022 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/sparc/sparc32/fpu/s_fabs.S b/sysdeps/sparc/sparc32/fpu/s_fabs.S
index 16ed7894a4..a03c9822d9 100644
--- a/sysdeps/sparc/sparc32/fpu/s_fabs.S
+++ b/sysdeps/sparc/sparc32/fpu/s_fabs.S
@@ -1,5 +1,5 @@
 /* Float absolute value, sparc32 version.
-   Copyright (C) 2011-2021 Free Software Foundation, Inc.
+   Copyright (C) 2011-2022 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/sparc/sparc32/fpu/s_fabsf.S b/sysdeps/sparc/sparc32/fpu/s_fabsf.S
index e17a9d6872..45bc46112c 100644
--- a/sysdeps/sparc/sparc32/fpu/s_fabsf.S
+++ b/sysdeps/sparc/sparc32/fpu/s_fabsf.S
@@ -1,5 +1,5 @@
 /* Float absolute value, sparc32 version.
-   Copyright (C) 2006-2021 Free Software Foundation, Inc.
+   Copyright (C) 2006-2022 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/sparc/sparc32/fpu/s_signbit.S b/sysdeps/sparc/sparc32/fpu/s_signbit.S
index 525022d3ed..0164aa226f 100644
--- a/sysdeps/sparc/sparc32/fpu/s_signbit.S
+++ b/sysdeps/sparc/sparc32/fpu/s_signbit.S
@@ -1,5 +1,5 @@
 /* signbit().  sparc32 version.
-   Copyright (C) 2012-2021 Free Software Foundation, Inc.
+   Copyright (C) 2012-2022 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/sparc/sparc32/fpu/s_signbitl.S b/sysdeps/sparc/sparc32/fpu/s_signbitl.S
index 73f6fe6eb4..fb43092ada 100644
--- a/sysdeps/sparc/sparc32/fpu/s_signbitl.S
+++ b/sysdeps/sparc/sparc32/fpu/s_signbitl.S
@@ -1,5 +1,5 @@
 /* signbitl().  sparc32 version.
-   Copyright (C) 2012-2021 Free Software Foundation, Inc.
+   Copyright (C) 2012-2022 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