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/unix/sysv/linux/csky/abiv2/____longjmp_chk.S b/sysdeps/unix/sysv/linux/csky/abiv2/____longjmp_chk.S
index 3c328d1275..cefe7c745c 100644
--- a/sysdeps/unix/sysv/linux/csky/abiv2/____longjmp_chk.S
+++ b/sysdeps/unix/sysv/linux/csky/abiv2/____longjmp_chk.S
@@ -1,5 +1,5 @@
 /* longjmp with sp check for C-SKY ABIV2.
-   Copyright (C) 2018-2021 Free Software Foundation, Inc.
+   Copyright (C) 2018-2022 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/unix/sysv/linux/csky/abiv2/clone.S b/sysdeps/unix/sysv/linux/csky/abiv2/clone.S
index 8972f87434..668adb9c34 100644
--- a/sysdeps/unix/sysv/linux/csky/abiv2/clone.S
+++ b/sysdeps/unix/sysv/linux/csky/abiv2/clone.S
@@ -1,5 +1,5 @@
 /* Wrapper around clone system call.  C-SKY ABIV2 version.
-   Copyright (C) 2018-2021 Free Software Foundation, Inc.
+   Copyright (C) 2018-2022 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/unix/sysv/linux/csky/abiv2/getcontext.S b/sysdeps/unix/sysv/linux/csky/abiv2/getcontext.S
index bed2ba1247..fe9abd931d 100644
--- a/sysdeps/unix/sysv/linux/csky/abiv2/getcontext.S
+++ b/sysdeps/unix/sysv/linux/csky/abiv2/getcontext.S
@@ -1,5 +1,5 @@
 /* Save current context.  C-SKY ABIV2 version.
-   Copyright (C) 2018-2021 Free Software Foundation, Inc.
+   Copyright (C) 2018-2022 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/unix/sysv/linux/csky/abiv2/setcontext.S b/sysdeps/unix/sysv/linux/csky/abiv2/setcontext.S
index cd68e061d7..90ba2f96cd 100644
--- a/sysdeps/unix/sysv/linux/csky/abiv2/setcontext.S
+++ b/sysdeps/unix/sysv/linux/csky/abiv2/setcontext.S
@@ -1,5 +1,5 @@
 /* Set saved user context to current context.  C-SKY ABIV2 version.
-   Copyright (C) 2018-2021 Free Software Foundation, Inc.
+   Copyright (C) 2018-2022 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/unix/sysv/linux/csky/abiv2/swapcontext.S b/sysdeps/unix/sysv/linux/csky/abiv2/swapcontext.S
index b559a11678..e1c99ab854 100644
--- a/sysdeps/unix/sysv/linux/csky/abiv2/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/csky/abiv2/swapcontext.S
@@ -1,5 +1,5 @@
 /* Save and set current context.  C-SKY ABIV2 version.
-   Copyright (C) 2018-2021 Free Software Foundation, Inc.
+   Copyright (C) 2018-2022 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/unix/sysv/linux/csky/abiv2/syscall.S b/sysdeps/unix/sysv/linux/csky/abiv2/syscall.S
index 81283d4340..f291d44dc0 100644
--- a/sysdeps/unix/sysv/linux/csky/abiv2/syscall.S
+++ b/sysdeps/unix/sysv/linux/csky/abiv2/syscall.S
@@ -1,5 +1,5 @@
 /* System call interface.  C-SKY ABIV2 version.
-   Copyright (C) 2018-2021 Free Software Foundation, Inc.
+   Copyright (C) 2018-2022 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/unix/sysv/linux/csky/abiv2/sysdep.S b/sysdeps/unix/sysv/linux/csky/abiv2/sysdep.S
index 2841ec5871..db2a7844e3 100644
--- a/sysdeps/unix/sysv/linux/csky/abiv2/sysdep.S
+++ b/sysdeps/unix/sysv/linux/csky/abiv2/sysdep.S
@@ -1,5 +1,5 @@
 /* syscall error handlers.  C-SKY ABIV2 version.
-   Copyright (C) 2018-2021 Free Software Foundation, Inc.
+   Copyright (C) 2018-2022 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