Defnydd: %s <dir> Cyfuno system ffeiliau ochr gefn a farciwyd i fyny, e.e.: cyf/%%gconf.xml isgyf1/%%gconf.xml isgyf2/%%gconf.xml i mewn i: cyf/%%gconf-tree.xml
Usage: %s <dir> Merges a markup backend filesystem hierarchy like: dir/%%gconf.xml subdir1/%%gconf.xml subdir2/%%gconf.xml to: dir/%%gconf-tree.xml