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

11 files changed, 11 insertions, 11 deletions

diff --git a/sysdeps/mach/htl/bits/spin-lock-inline.h b/sysdeps/mach/htl/bits/spin-lock-inline.h
index a28db5d83c..58e1fd153b 100644
--- a/sysdeps/mach/htl/bits/spin-lock-inline.h
+++ b/sysdeps/mach/htl/bits/spin-lock-inline.h
@@ -1,5 +1,5 @@
 /* Definitions of user-visible names for spin locks.
-   Copyright (C) 1994-2021 Free Software Foundation, Inc.
+   Copyright (C) 1994-2022 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/mach/htl/bits/types/__pthread_spinlock_t.h b/sysdeps/mach/htl/bits/types/__pthread_spinlock_t.h
index dd1d70f045..f55f95f25d 100644
--- a/sysdeps/mach/htl/bits/types/__pthread_spinlock_t.h
+++ b/sysdeps/mach/htl/bits/types/__pthread_spinlock_t.h
@@ -1,5 +1,5 @@
 /* Definitions of user-visible names for spin locks.
-   Copyright (C) 1994-2021 Free Software Foundation, Inc.
+   Copyright (C) 1994-2022 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/mach/htl/pt-block.c b/sysdeps/mach/htl/pt-block.c
index 7f94b2e081..08067ee0ee 100644
--- a/sysdeps/mach/htl/pt-block.c
+++ b/sysdeps/mach/htl/pt-block.c
@@ -1,5 +1,5 @@
 /* Block a thread.  Mach version.
-   Copyright (C) 2000-2021 Free Software Foundation, Inc.
+   Copyright (C) 2000-2022 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/mach/htl/pt-spin.c b/sysdeps/mach/htl/pt-spin.c
index 07ebae341c..d100eea863 100644
--- a/sysdeps/mach/htl/pt-spin.c
+++ b/sysdeps/mach/htl/pt-spin.c
@@ -1,5 +1,5 @@
 /* Spin locks.  Mach version.
-   Copyright (C) 2002-2021 Free Software Foundation, Inc.
+   Copyright (C) 2002-2022 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/mach/htl/pt-stack-alloc.c b/sysdeps/mach/htl/pt-stack-alloc.c
index 3bd3c06fcb..cb1807cd16 100644
--- a/sysdeps/mach/htl/pt-stack-alloc.c
+++ b/sysdeps/mach/htl/pt-stack-alloc.c
@@ -1,5 +1,5 @@
 /* Allocate a new stack.  Mach version.
-   Copyright (C) 2000-2021 Free Software Foundation, Inc.
+   Copyright (C) 2000-2022 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/mach/htl/pt-thread-alloc.c b/sysdeps/mach/htl/pt-thread-alloc.c
index 875ebaa819..e958bba28a 100644
--- a/sysdeps/mach/htl/pt-thread-alloc.c
+++ b/sysdeps/mach/htl/pt-thread-alloc.c
@@ -1,5 +1,5 @@
 /* Start thread.  Mach version.
-   Copyright (C) 2000-2021 Free Software Foundation, Inc.
+   Copyright (C) 2000-2022 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/mach/htl/pt-thread-start.c b/sysdeps/mach/htl/pt-thread-start.c
index aa1045182c..cc76ad3ade 100644
--- a/sysdeps/mach/htl/pt-thread-start.c
+++ b/sysdeps/mach/htl/pt-thread-start.c
@@ -1,5 +1,5 @@
 /* Start thread.  Mach version.
-   Copyright (C) 2000-2021 Free Software Foundation, Inc.
+   Copyright (C) 2000-2022 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/mach/htl/pt-thread-terminate.c b/sysdeps/mach/htl/pt-thread-terminate.c
index cfd7cdb2e8..8bc37b38e4 100644
--- a/sysdeps/mach/htl/pt-thread-terminate.c
+++ b/sysdeps/mach/htl/pt-thread-terminate.c
@@ -1,5 +1,5 @@
 /* Deallocate the kernel thread resources.  Mach version.
-   Copyright (C) 2000-2021 Free Software Foundation, Inc.
+   Copyright (C) 2000-2022 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/mach/htl/pt-timedblock.c b/sysdeps/mach/htl/pt-timedblock.c
index ce38104582..3cbae7ac7e 100644
--- a/sysdeps/mach/htl/pt-timedblock.c
+++ b/sysdeps/mach/htl/pt-timedblock.c
@@ -1,5 +1,5 @@
 /* Block a thread with a timeout.  Mach version.
-   Copyright (C) 2000-2021 Free Software Foundation, Inc.
+   Copyright (C) 2000-2022 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/mach/htl/pt-wakeup.c b/sysdeps/mach/htl/pt-wakeup.c
index bad6eca056..75f2710648 100644
--- a/sysdeps/mach/htl/pt-wakeup.c
+++ b/sysdeps/mach/htl/pt-wakeup.c
@@ -1,5 +1,5 @@
 /* Wakeup a thread.  Mach version.
-   Copyright (C) 2000-2021 Free Software Foundation, Inc.
+   Copyright (C) 2000-2022 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/mach/htl/thrd_yield.c b/sysdeps/mach/htl/thrd_yield.c
index 86aa7c775a..f1a0a806c9 100644
--- a/sysdeps/mach/htl/thrd_yield.c
+++ b/sysdeps/mach/htl/thrd_yield.c
@@ -1,5 +1,5 @@
 /* sched_yield -- yield the processor.  Mach version.
-   Copyright (C) 2020-2021 Free Software Foundation, Inc.
+   Copyright (C) 2020-2022 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