LGPLv2+ -> LGPLv2.1+: update remaining files

For the files in gio/ (but not in gio/ sub-directories), only the *.[ch]
files were handled in commit 3bf4a720c315b5015c8d51edf0b458348f796674.

For the modified files in glib/tests/markups/, I've tested that
`make check` still succeeds.

After this commit,
$ git grep -in "GNU Library"
and
$ git grep -in "Library General"
return only results in COPYING files and in glib/libcharset/. The latter
was not updated because it's a copy.

$ git grep -in "version 2" | grep -iv "version 2\.1"
now doesn't return any LGPL license header.
- glib-gettextize.in: GPL
- glib/gen-unicode-tables.pl: GPL
- glib/gnulib/: a copy
- glib/libcharset/: a copy
- m4macros/attributes.m4: GPL
- po/po2tbl.sed.in: GPL
- tap-driver.sh: GPL
- tests/*.pl: GPL

https://bugzilla.gnome.org/show_bug.cgi?id=776504

gio/data-to-c.pl

@@ -5,7 +5,7 @@
 # This library is free software; you can redistribute it and/or
 # modify it under the terms of the GNU Lesser General Public
 # License as published by the Free Software Foundation; either
-# version 2 of the licence, or (at your option) any later version.
+# version 2.1 of the License, or (at your option) any later version.
 #
 # This library is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of

gio/gnetworking.h.in

@@ -5,15 +5,15 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
- * You should have received a copy of the GNU Lesser General
- * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
 
 #ifndef __G_NETWORKING_H__

gio/gnetworking.h.win32

@@ -5,15 +5,15 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
- * You should have received a copy of the GNU Lesser General
- * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
 
 #ifndef __G_NETWORKING_H__

gio/gopenuriportal.c

@@ -5,15 +5,15 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
- * You should have received a copy of the GNU Lesser General
- * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
 
 #include "config.h"

gio/gopenuriportal.h

@@ -5,15 +5,15 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
- * You should have received a copy of the GNU Lesser General
- * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
 
 #ifndef __G_OPEN_URI_PORTAL_H__

gio/org.freedesktop.portal.Documents.xml

@@ -8,7 +8,7 @@
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
+ version 2.1 of the License, or (at your option) any later version.
 
  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of

gio/org.freedesktop.portal.NetworkMonitor.xml

@@ -5,7 +5,7 @@
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
+ version 2.1 of the License, or (at your option) any later version.
 
  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of

gio/org.freedesktop.portal.OpenURI.xml

@@ -5,7 +5,7 @@
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
+ version 2.1 of the License, or (at your option) any later version.
 
  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of

gio/org.freedesktop.portal.ProxyResolver.xml

@@ -5,7 +5,7 @@
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
+ version 2.1 of the License, or (at your option) any later version.
 
  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of

glib/tests/markups/valid-14.expected

@@ -10,7 +10,7 @@ ELEMENT 'foo'
  *
  * GLib is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 2 of the
+ * published by the Free Software Foundation; either version 2.1 of the
  * License, or (at your option) any later version.
  *
  * GLib is distributed in the hope that it will be useful,

glib/tests/markups/valid-14.gmarkup

@@ -7,7 +7,7 @@
  *
  * GLib is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 2 of the
+ * published by the Free Software Foundation; either version 2.1 of the
  * License, or (at your option) any later version.
  *
  * GLib is distributed in the hope that it will be useful,