fsck: Some typographical corrections to the manual

fsck: Some typographical corrections to the manual

  The word "kilobytes" is ambiguous.  Change it to "kibibytes" if kilo
does not mean 1000.  Otherwise add "(1000 B)" after it.

  A string, that begins or ends with a full stop (.), protected with \&

  - changed to \- if it shows an option

  -- change to \(en if it means a dash (pause, separation)

  Space between sentences is two word spaces in *roff.  Thus it is
better to begin each sentence on a new line when the file contains
formatting commands

  --- changed to \(en if it means a dash (pause, separation)

  Punctuation separated from a word with a space, if it is an argument
to a macro like "BR" (two font styles used alternately)

  Adjusting inhibited for the section "SEE ALSO" with ".na/.ad"

Signed-off-by: Karel Zak <kzak@redhat.com>