Require xlock in grml-lock if DISPLAY is set. [Closes: issue768]
drwxr-xr-x - compile
drwxr-xr-x - debian
drwxr-xr-x - doc
-rw-r--r-- 281 makefile.postfix
drwxr-xr-x - manpages
drwxr-xr-x - usr_bin
drwxr-xr-x - usr_sbin
drwxr-xr-x - usr_share