Stand-up Scene: Say you saw these locals when
"The two most beautiful words in the world of comedy ... 'Richard Pryor'." This effusive sentiment opens the recent Showtime documentary "Omit the Logic" and serves as a reminder of Pryor's devotion to stand-up comedy and his genius at pushing the art form into uncharted territories. But it wasn't always that way. Pryor played it mostly safe in his early late-night television appearances and live act until he famousl…