LOS ANGELES (Hollywood Reporter) - Two days after being snubbed when the Oscar nominations were announced, Michael Moore was left off the list Thursday when the Writers Guild of America unveiled nominees for its first documentary writing award for a feature film. The six nominated pictures are "The Hunting of the President," which alleges a campaign against Bill Clinton from his early days in Arkansas through his impeachment; "Control Room," an inside view of the Arab television network Al Jazeera during the war in Iraq; "Bright Leaves," a reflection on Big Tobacco by the great-grandson of a tobacco baron; "Home...