Louis C.K. is not going to miss his first time hosting “Saturday Night Live.” The”Louie” star, who was forced to cancel a stand-up show in New York earlier this week due to Superstorm Sandy, vows he’ll do “SNL” “no matter what happens” — even if that means dressing up in a rain slicker and having water tossed in his face. Hey, that’s dedication. C.K. hosts “SNL” this Saturday with musical guest Fun. Set your DVR here.