Andy Pettitte held the glove high in front of his face, his eyes intently peering over the black leather for the final time. In this season of farewells, the Yankees left-hander closed out his career with one more vintage performance. Facing the only other club he has pitched for, Pettitte held the Astros to five hits while hurling the 26th complete game of his career in the Yankees’ 2-1 victory over Houston on Saturday night at Minute Maid Park.