Producers of Broadway tuner “Bring It On” have opted to shutter the show a bit earlier than previously announced, with the musical now set to close Dec. 30.Originally a limited booking through Oct. 7, “Bring It On” yielded solid enough sales after it opened this summer to spur an extension to Jan. 20. In shortening that extension, “Bring It On” avoids the box office crash that invariably hits Broadway in early January, right after the holiday tourism boom that causes an annual spike in sales. Based on the franchise of cheerleader comedies that launched with Universal’s initial bigscreen outing in 2000, the stage version of “Bring It On” bowed at Atlanta’s Alliance Theater ahead of a 13-city tour that finished up on Broadway, where the show opened Aug. 1. Jeff Whitty (“Avenue Q”) pens the book for the show with a score by Lin-Manuel Miranda (“In the Heights”), Tom Kitt (“Next to Normal”) and Amanda Green (“Hands on a Hardbody”). Andy Blankenbuehler (“In the Heights”) directs and choreographs. News of the show’s new Broadway closing comes just after a down week for the tuner, which saw sales slide 31% to $365,689 and attendance drop to 56% — although that falloff was likely exacerbated by the fact that it was first week of the extension following the show’s original Oct. 7 closing date. Universal Pictures Stage Prods./Glenn Ross, Beacon Communications/Armyan Bernstein and Charlie Lyons produce “Bring It On” with exec producers Kristin Caskey and Mike Isaacson. Future tour dates for the tuner are a possibility for the 2013-14 season.