Update copyright year range in all GDB files.

This commit applies all changes made after running the gdb/copyright.py
script.

Note that one file was flagged by the script, due to an invalid
copyright header
(gdb/unittests/basic_string_view/element_access/char/empty.cc).
As the file was copied from GCC's libstdc++-v3 testsuite, this commit
leaves this file untouched for the time being; a patch to fix the header
was sent to gcc-patches first.

gdb/ChangeLog:

	Update copyright year range in all GDB files.

14 files changed, 14 insertions, 14 deletions

diff --git a/gdb/unittests/optional/assignment/1.cc b/gdb/unittests/optional/assignment/1.cc
index 0c90c77..8524647 100644
--- a/gdb/unittests/optional/assignment/1.cc
+++ b/gdb/unittests/optional/assignment/1.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2018 Free Software Foundation, Inc.
+// Copyright (C) 2013-2019 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/gdb/unittests/optional/assignment/2.cc b/gdb/unittests/optional/assignment/2.cc
index 9bf4add..8c91602 100644
--- a/gdb/unittests/optional/assignment/2.cc
+++ b/gdb/unittests/optional/assignment/2.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2018 Free Software Foundation, Inc.
+// Copyright (C) 2013-2019 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/gdb/unittests/optional/assignment/3.cc b/gdb/unittests/optional/assignment/3.cc
index 851a41a..2957a29 100644
--- a/gdb/unittests/optional/assignment/3.cc
+++ b/gdb/unittests/optional/assignment/3.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2018 Free Software Foundation, Inc.
+// Copyright (C) 2013-2019 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/gdb/unittests/optional/assignment/4.cc b/gdb/unittests/optional/assignment/4.cc
index 3672ed3..98ea03d 100644
--- a/gdb/unittests/optional/assignment/4.cc
+++ b/gdb/unittests/optional/assignment/4.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2018 Free Software Foundation, Inc.
+// Copyright (C) 2013-2019 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/gdb/unittests/optional/assignment/5.cc b/gdb/unittests/optional/assignment/5.cc
index e334364..3a7bd33 100644
--- a/gdb/unittests/optional/assignment/5.cc
+++ b/gdb/unittests/optional/assignment/5.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2018 Free Software Foundation, Inc.
+// Copyright (C) 2013-2019 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/gdb/unittests/optional/assignment/6.cc b/gdb/unittests/optional/assignment/6.cc
index 02d0d0d..cea5994 100644
--- a/gdb/unittests/optional/assignment/6.cc
+++ b/gdb/unittests/optional/assignment/6.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2018 Free Software Foundation, Inc.
+// Copyright (C) 2013-2019 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/gdb/unittests/optional/assignment/7.cc b/gdb/unittests/optional/assignment/7.cc
index e94f15b..76a47eb 100644
--- a/gdb/unittests/optional/assignment/7.cc
+++ b/gdb/unittests/optional/assignment/7.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2016-2018 Free Software Foundation, Inc.
+// Copyright (C) 2016-2019 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/gdb/unittests/optional/cons/copy.cc b/gdb/unittests/optional/cons/copy.cc
index 132f655..28bfce8 100644
--- a/gdb/unittests/optional/cons/copy.cc
+++ b/gdb/unittests/optional/cons/copy.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2018 Free Software Foundation, Inc.
+// Copyright (C) 2013-2019 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/gdb/unittests/optional/cons/default.cc b/gdb/unittests/optional/cons/default.cc
index 9d7abca..828fa26 100644
--- a/gdb/unittests/optional/cons/default.cc
+++ b/gdb/unittests/optional/cons/default.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2018 Free Software Foundation, Inc.
+// Copyright (C) 2013-2019 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/gdb/unittests/optional/cons/move.cc b/gdb/unittests/optional/cons/move.cc
index 3c68bff..0cfa539 100644
--- a/gdb/unittests/optional/cons/move.cc
+++ b/gdb/unittests/optional/cons/move.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2018 Free Software Foundation, Inc.
+// Copyright (C) 2013-2019 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/gdb/unittests/optional/cons/value.cc b/gdb/unittests/optional/cons/value.cc
index c7c56be..e47b367 100644
--- a/gdb/unittests/optional/cons/value.cc
+++ b/gdb/unittests/optional/cons/value.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2018 Free Software Foundation, Inc.
+// Copyright (C) 2013-2019 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/gdb/unittests/optional/in_place.cc b/gdb/unittests/optional/in_place.cc
index 135db56..6387be4 100644
--- a/gdb/unittests/optional/in_place.cc
+++ b/gdb/unittests/optional/in_place.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2018 Free Software Foundation, Inc.
+// Copyright (C) 2013-2019 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/gdb/unittests/optional/observers/1.cc b/gdb/unittests/optional/observers/1.cc
index c43e93f..42a7719 100644
--- a/gdb/unittests/optional/observers/1.cc
+++ b/gdb/unittests/optional/observers/1.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2018 Free Software Foundation, Inc.
+// Copyright (C) 2013-2019 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/gdb/unittests/optional/observers/2.cc b/gdb/unittests/optional/observers/2.cc
index bb13004..cc28c0b 100644
--- a/gdb/unittests/optional/observers/2.cc
+++ b/gdb/unittests/optional/observers/2.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2018 Free Software Foundation, Inc.
+// Copyright (C) 2013-2019 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