nothing. "systemctl enable" does nothing, and gives a bad message
about it. Should fix both to print nice actionable messages.
-* man: link up systemd.directives better, so that people actually know about it
-
* fstab: add new mount option x-systemd-after=/foobar/waldo to allow manual dependencies to other mount points
https://bugzilla.redhat.com/show_bug.cgi?id=812826