SPOILER ALERT: The NBC sitcom Parks and Recreation ended its sixth season last night with the endlessly-optimistic public servant Leslie Knope becoming a federal employee by accepting a job as the National Park Service’s Midwest Regional Director, and then talking her new boss into relocating the office to her hometown of Pawnee, Indiana. Which is great news for the show’s viewers, but raises troubling questions about multiple violations of civil service rules. FedLine has exclusively obtained a copy of the Interior Department’s inspector general report into Regional Director Knope’s activities: To: Jonathan Jarvis, director, National Park Service From: Mary Kendall,…