[small request] wording for when LSmash fails

[plonk264]

please add to the wording (before/currently) "lsmas is not installed"

(after/requested) "lsmash is not installed or not up to date"

one of the sources i got LSmash from (maybe MeGUI?) was out of date and causing it not to work

[master-of-zen]

Idk how to check is lsmash perfectly fine for vapoursynth install

[plonk264]

you don't have to know. just letting people know they might have the wrong version would be helpful, though

[master-of-zen]

@plonk264 will do that, it's not a priority right now