in base instead. theo ok & rush to go for beer

ok miod@ krw@

switching to that securelevel, and the clock is off by more than
128ms, ntpd will attempt to correct by stepping the clock instead of
slewing it. So use -x in that case; from tholo

- Add ntpdate and rdate rc knobs
Approved-And-Assisted-By: millert

Move xdm back to rc.local; if your X server need access to /dev/mem
and you do not use the ap driver starting xdm from rc.securelevel
will only help the first time.
Add other rc.securelevel examples that are not daemons.

in securelevels, follow them religiously. Problem found by millert...