update_version_svn: Update DATESTAMP also on branches/gcc-[0-9]+-branch.

	* update_version_svn: Update DATESTAMP also on
	branches/gcc-[0-9]+-branch.

From-SVN: r222044

maintainer-scripts/ChangeLog

 2015-04-13  Jakub Jelinek  <jakub@redhat.com>
 
+	* update_version_svn: Update DATESTAMP also on
+	branches/gcc-[0-9]+-branch.
+
 	* gcc_release: Fix up thinko in the last commit, improve error
 	message.  Commit all ChangeLog, DEV-PHASE and BASE-VER changes
 	together, rather than doing dozens of separate commits.

maintainer-scripts/update_version_svn

@@ -20,7 +20,7 @@ SVN=${SVN:-/usr/bin/svn}
 # Compute the branches which we should update.
 BRANCHES=`$SVN ls $SVNROOT/branches \
 	  | sed -e 's/\///' \
-          | egrep 'gcc-[0-9]+_[0-9]+-branch$' \
+          | egrep 'gcc-[0-9]+(_[0-9]+)?-branch$' \
           | egrep -v $IGNORE_BRANCHES`
 # Always update the mainline.
 BRANCHES="${BRANCHES} ${ADD_BRANCHES}"