[MPlayer-DOCS] various sync against latest English manpage

[Diego Biurrun]

Guillaume POIRIER writes:
> > 
> I'll update the whole manpage later (otherwise, this never-ending 
> cosmetic fixes might make me depressed! ;-), but provide "catch-up" 
> patches with this format.

It should not take you longer than 5 minutes with one or two emacs
macros and some checking ;-P

> Anyway, thanks for reviewing my patches!

No problem, that's my job ;-)

Diego