necessary to access cdrom and other devices (currently show up as disks)

This is really paranoid, but who knows what some weirdos are capable of?

more verbose when upping the securelevel.

some corrections.

alphabetical :-) and remove the entry for tahoe (is the vax entry
still used ?)

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

we won't have anything to put in here :-)

consistent.  Noted by William Wisner <wisner@gryphon.com>

ref: netbsd pr3228/misc, Matthias Scheler

import from hp300 port