[MPlayer-DOCS] Other random better descriptions

[Diego Biurrun]

Guillaume POIRIER writes:
> 
> Based on your suggestions here's a patch for the vme option.
> 
> -EPZS: size=1 diamond (default)
> +EPZS: size=1 diamond by default, size depends on *dia settings (default)

This could be worded better.  What about:

EPZS: size=1 diamond, size can be adjusted with the *dia options
(default)

It's not perfect either, but I believe it is an improvement.

Anyway, commit.

Diego