o Fix typo in SYNOPSIS (disktype -> disktype/auto)
o Add missing sentences about ``dangerously dedicated'' disklabel in
`disklabel -B [-b ....]' description and `disklabel -R -B [-n] ...' description
o Fix typo in EXAMPLES section (da0s1 -> da0)
o Use correct punctuations
o Use the same mdoc macro as original
Submitted by: SAKAMOTO Seiji <s-seiji@hyper.ocn.ne.jp>,
mistral@imasy.or.jp (Yoshihiko SARUMARU)