Sad news for workers in the 19th and L area: the old standby watering hole Black Rooster Pub will be forced to close its doors by Nov. 3, the Washington Business Journal is reporting. The bar, located at 1919 L Street NW, is being kicked out by the building’s owner, who has decided to lease the space to the Peace Corps. instead. Since opening in 1970, Black Rooster has long been the sort of…