grml-live: clean up MIRROR_DIRECTORY if provided.

Be like a ninja.

diff --git a/grml-live b/grml-live
index 8b0adfe..6107e28 100755 (executable)
--- a/grml-live
+++ b/grml-live
@@ -180,7 +180,10 @@ umount_all() {
    fi
 
    umount "${CHROOT_OUTPUT}/grml-live/sources/" 2>/dev/null || /bin/true
    fi
 
    umount "${CHROOT_OUTPUT}/grml-live/sources/" 2>/dev/null || /bin/true

-   [ -n "$MIRROR_DIRECTORY" ] && umount "${CHROOT_OUTPUT}/${MIRROR_DIRECTORY}"
+   if [ -n "${MIRROR_DIRECTORY}" ]; then
+     umount "${CHROOT_OUTPUT}/${MIRROR_DIRECTORY}"
+     rmdir -p "${CHROOT_OUTPUT}/${MIRROR_DIRECTORY}"
+   fi

 }
 # }}}
 
 }
 # }}}