mount.8: Some typographical and prefix corrections to the manual

mount.8: Some typographical and prefix corrections to the manual

  I forgot to add the patch to the attachment.

  Additional changes to "Changes:"

  " \(em " changed to " \(en ", as the em-dash with a word space on each
side is to long (troff)

  ".na/.ad" is not used but .nf/.fi for a long command line and it is
split into two lines

  Word "illegal" is changed to "invalid"

  Word "hyphen-separated" is changed to '"hyphen-minus"-separated' as
the meaning is the code and not the glyph (on the command line) (beware
of UTF-8)

--
Bjarni I. Gislason