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

20 files changed, 20 insertions, 20 deletions

diff --git a/mach/Machrules b/mach/Machrules
index ebb0fabd7a..a1c936f604 100644
--- a/mach/Machrules
+++ b/mach/Machrules
@@ -1,5 +1,5 @@
 # Rules for MiG interfaces that want to go into the C library.
-# Copyright (C) 1991-2021 Free Software Foundation, Inc.
+# Copyright (C) 1991-2022 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/mach/Makefile b/mach/Makefile
index 59922486d5..1918b915e0 100644
--- a/mach/Makefile
+++ b/mach/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1991-2021 Free Software Foundation, Inc.
+# Copyright (C) 1991-2022 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/mach/devstream.c b/mach/devstream.c
index f7c8e9d1ef..75cdc3ede2 100644
--- a/mach/devstream.c
+++ b/mach/devstream.c
@@ -1,6 +1,6 @@
 /* stdio on a Mach device port.
    Translates \n to \r\n on output, echos and translates \r to \n on input.
-   Copyright (C) 1992-2021 Free Software Foundation, Inc.
+   Copyright (C) 1992-2022 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/mach/lock-intern.h b/mach/lock-intern.h
index c1f73909ca..7d8a61cae4 100644
--- a/mach/lock-intern.h
+++ b/mach/lock-intern.h
@@ -1,4 +1,4 @@
-/* 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/mach/lowlevellock.h b/mach/lowlevellock.h
index e2344ab431..6336694902 100644
--- a/mach/lowlevellock.h
+++ b/mach/lowlevellock.h
@@ -1,5 +1,5 @@
 /* Low-level lock implementation.  Mach gsync-based version.
-   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/mach/mach.h b/mach/mach.h
index 435de4fbd8..da6347e406 100644
--- a/mach/mach.h
+++ b/mach/mach.h
@@ -1,5 +1,5 @@
 /* Standard header for all Mach programs.
-   Copyright (C) 1993-2021 Free Software Foundation, Inc.
+   Copyright (C) 1993-2022 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/mach/mach/mach_traps.h b/mach/mach/mach_traps.h
index a1ea595c91..fc09d5b8b0 100644
--- a/mach/mach/mach_traps.h
+++ b/mach/mach/mach_traps.h
@@ -1,4 +1,4 @@
-/* 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/mach/mach/mig_support.h b/mach/mach/mig_support.h
index fa38761604..44ecf28ff2 100644
--- a/mach/mach/mig_support.h
+++ b/mach/mach/mig_support.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1993-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1993-2022 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/mach/mach_init.c b/mach/mach_init.c
index a122f77df1..61c5e15a8f 100644
--- a/mach/mach_init.c
+++ b/mach/mach_init.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2022 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/mach/mach_init.h b/mach/mach_init.h
index 70b02bcc9a..ad443e8006 100644
--- a/mach/mach_init.h
+++ b/mach/mach_init.h
@@ -1,5 +1,5 @@
 /* Declarations and macros for the basic Mach things set at startup.
-   Copyright (C) 1993-2021 Free Software Foundation, Inc.
+   Copyright (C) 1993-2022 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/mach/mig-alloc.c b/mach/mig-alloc.c
index bf21157b70..dba762a6da 100644
--- a/mach/mig-alloc.c
+++ b/mach/mig-alloc.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2022 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/mach/mig-dealloc.c b/mach/mig-dealloc.c
index b4e62ee589..2c77877aa0 100644
--- a/mach/mig-dealloc.c
+++ b/mach/mig-dealloc.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2022 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/mach/mig-reply.c b/mach/mig-reply.c
index cc64b8dc9f..a888c594c8 100644
--- a/mach/mig-reply.c
+++ b/mach/mig-reply.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2022 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/mach/mig_memcpy.c b/mach/mig_memcpy.c
index 1f87f64a79..414a706670 100644
--- a/mach/mig_memcpy.c
+++ b/mach/mig_memcpy.c
@@ -1,5 +1,5 @@
 /* memcpy stub for mig stubs in libmachuser and libhurduser.
-   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
diff --git a/mach/msgserver.c b/mach/msgserver.c
index 2f72f0315a..41ffd4c41d 100644
--- a/mach/msgserver.c
+++ b/mach/msgserver.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1993-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1993-2022 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/mach/mutex-init.c b/mach/mutex-init.c
index 8cb06eb91e..84d5dc1e9a 100644
--- a/mach/mutex-init.c
+++ b/mach/mutex-init.c
@@ -1,5 +1,5 @@
 /* Initialize a cthreads mutex structure.
-   Copyright (C) 1995-2021 Free Software Foundation, Inc.
+   Copyright (C) 1995-2022 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/mach/mutex-solid.c b/mach/mutex-solid.c
index 69a4edd798..08e0f53e91 100644
--- a/mach/mutex-solid.c
+++ b/mach/mutex-solid.c
@@ -1,5 +1,5 @@
 /* Stub versions of mutex_lock_solid/mutex_unlock_solid for no -lthreads.
-   Copyright (C) 1995-2021 Free Software Foundation, Inc.
+   Copyright (C) 1995-2022 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/mach/setup-thread.c b/mach/setup-thread.c
index ae501675b5..dcf57ad53f 100644
--- a/mach/setup-thread.c
+++ b/mach/setup-thread.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2022 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/mach/spin-lock.h b/mach/spin-lock.h
index 493e9a2078..0518b36ff7 100644
--- a/mach/spin-lock.h
+++ b/mach/spin-lock.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/mach/spin-solid.c b/mach/spin-solid.c
index ae6574f487..0c54b48997 100644
--- a/mach/spin-solid.c
+++ b/mach/spin-solid.c
@@ -1,4 +1,4 @@
-/* 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