Comedian, correspondent on “The Daily Show With Jon Stewart,” and Brookline native John Hodgman reports that he’ll have mayoral candidate and state Representative Marty Walsh at his show at the Wilbur Theatre on Saturday. Hodgman plans to quiz Walsh about his mission to make the Modern Lovers single “Roadrunner” the state song.Mark Shanahan can be reached at email@example.com. Follow him on Twitter @MarkAShanahan. Meredith Goldstein can be reached at firstname.lastname@example.org. Follow her on Twitter @MeredithGoldste.