add "Id" property, and "Id" line, and license line, if any were needed

svn: r22372

po/vi.po

@@ -1,6 +1,7 @@
-# SOME DESCRIPTIVE TITLE.
+# Vietnamese translation for Gramps
+# $Id$
+# This file is distributed under the same license as the Gramps package.
 # Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
-# This file is distributed under the same license as the PACKAGE package.
 # FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
 #
 msgid ""