libstdc++: Update copyright dates on new files

The patch adding these files was approved in 2020 but it wasn't
committed until 2021, so the copyright years were not updated along with
the years in all the existing files.

libstdc++-v3/ChangeLog:

	* include/std/barrier: Update copyright years. Fix whitespace.
	* include/std/version: Fix whitespace.
	* testsuite/30_threads/barrier/1.cc: Update copyright years.
	* testsuite/30_threads/barrier/2.cc: Likewise.
	* testsuite/30_threads/barrier/arrive.cc: Likewise.
	* testsuite/30_threads/barrier/arrive_and_drop.cc: Likewise.
	* testsuite/30_threads/barrier/arrive_and_wait.cc: Likewise.
	* testsuite/30_threads/barrier/completion.cc: Likewise.

8 files changed, 10 insertions, 10 deletions

diff --git a/libstdc++-v3/include/std/barrier b/libstdc++-v3/include/std/barrier
index f1143da..e09212d 100644
--- a/libstdc++-v3/include/std/barrier
+++ b/libstdc++-v3/include/std/barrier
@@ -1,6 +1,6 @@
 // <barrier> -*- C++ -*-
 
-// Copyright (C) 2020 Free Software Foundation, Inc.
+// Copyright (C) 2020-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
@@ -103,7 +103,7 @@ It looks different from literature pseudocode for two main reasons:
 			   static_cast<__barrier_phase_t>(__old_phase_val + 2);
 
 	size_t __current_expected = _M_expected;
-	std::hash<std::thread::id>__hasher;
+	std::hash<std::thread::id> __hasher;
 	size_t __current = __hasher(std::this_thread::get_id())
 					  % ((_M_expected + 1) >> 1);
 
diff --git a/libstdc++-v3/include/std/version b/libstdc++-v3/include/std/version
index 9516558..e3d52b8 100644
--- a/libstdc++-v3/include/std/version
+++ b/libstdc++-v3/include/std/version
@@ -200,8 +200,8 @@
 #if defined _GLIBCXX_HAS_GTHREADS || defined _GLIBCXX_HAVE_LINUX_FUTEX
 # define __cpp_lib_atomic_wait 201907L
 # if __cpp_aligned_new
-# define __cpp_lib_barrier 201907L
-#endif
+#  define __cpp_lib_barrier 201907L
+# endif
 #endif
 #define __cpp_lib_bind_front 201907L
 #if __has_builtin(__builtin_bit_cast)
diff --git a/libstdc++-v3/testsuite/30_threads/barrier/1.cc b/libstdc++-v3/testsuite/30_threads/barrier/1.cc
index 4c15deb..a21fae3 100644
--- a/libstdc++-v3/testsuite/30_threads/barrier/1.cc
+++ b/libstdc++-v3/testsuite/30_threads/barrier/1.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2020 Free Software Foundation, Inc.
+// Copyright (C) 2020-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/testsuite/30_threads/barrier/2.cc b/libstdc++-v3/testsuite/30_threads/barrier/2.cc
index 0fac1ef..94e37d7 100644
--- a/libstdc++-v3/testsuite/30_threads/barrier/2.cc
+++ b/libstdc++-v3/testsuite/30_threads/barrier/2.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2019-2020 Free Software Foundation, Inc.
+// Copyright (C) 2020-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/testsuite/30_threads/barrier/arrive.cc b/libstdc++-v3/testsuite/30_threads/barrier/arrive.cc
index 6e64e37..fb0f562 100644
--- a/libstdc++-v3/testsuite/30_threads/barrier/arrive.cc
+++ b/libstdc++-v3/testsuite/30_threads/barrier/arrive.cc
@@ -3,7 +3,7 @@
 // { dg-require-gthreads "" }
 // { dg-additional-options "-pthread" { target pthread } }
 
-// Copyright (C) 2020 Free Software Foundation, Inc.
+// Copyright (C) 2020-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/testsuite/30_threads/barrier/arrive_and_drop.cc b/libstdc++-v3/testsuite/30_threads/barrier/arrive_and_drop.cc
index 55f40e1..22b4020 100644
--- a/libstdc++-v3/testsuite/30_threads/barrier/arrive_and_drop.cc
+++ b/libstdc++-v3/testsuite/30_threads/barrier/arrive_and_drop.cc
@@ -3,7 +3,7 @@
 // { dg-require-gthreads "" }
 // { dg-additional-options "-pthread" { target pthread } }
 
-// Copyright (C) 2020 Free Software Foundation, Inc.
+// Copyright (C) 2020-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/testsuite/30_threads/barrier/arrive_and_wait.cc b/libstdc++-v3/testsuite/30_threads/barrier/arrive_and_wait.cc
index 2a3a69a..f9b4fa2 100644
--- a/libstdc++-v3/testsuite/30_threads/barrier/arrive_and_wait.cc
+++ b/libstdc++-v3/testsuite/30_threads/barrier/arrive_and_wait.cc
@@ -3,7 +3,7 @@
 // { dg-require-gthreads "" }
 // { dg-additional-options "-pthread" { target pthread } }
 
-// Copyright (C) 2020 Free Software Foundation, Inc.
+// Copyright (C) 2020-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
diff --git a/libstdc++-v3/testsuite/30_threads/barrier/completion.cc b/libstdc++-v3/testsuite/30_threads/barrier/completion.cc
index ef6d2c3..27be084 100644
--- a/libstdc++-v3/testsuite/30_threads/barrier/completion.cc
+++ b/libstdc++-v3/testsuite/30_threads/barrier/completion.cc
@@ -3,7 +3,7 @@
 // { dg-require-gthreads "" }
 // { dg-additional-options "-pthread" { target pthread } }
 
-// Copyright (C) 2020 Free Software Foundation, Inc.
+// Copyright (C) 2020-2021 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the