CHICAGO – Instead of marching into the All-Star break with a four-game sweep, the Mets will have four days to forget the way they ended the first half. The Amazin’s, playing gritty baseball, wanted a better result in the series finale at Wrigley Field that wrapped up an otherwise successful road trip. Their one-run lead was erased in the eighth inning when Drew Smith coughed up three singles across five batters faced. When Buck Showalter trotted out of the dugout to yank Smith from his disappointing outing, it was too late. The damage had been done. The Mets offense failed to scratch a run aga…