WASHINGTON — A federal government agency did more than wrinkle its nose at an employee’s flatulence problem, issuing an official reprimand after months of malodors. But the agency said Friday that it has since retracted the rebuke. The reprimand letter, which runs four pages and is dated Dec. 10, charges the Social Security Administration employee with “conduct unbecoming a federal employee” and “creating a hostile work environment” because of the repeated gas passing. It says coworkers didn’t want to work with the person because of the problem, which the employee seems to have attributed to lactose intolerance. The letter also …