LOS ANGELES — As soon as he heard the crack of the bat, lifelong Dodgers fan Renan Zuniga knew exactly what to do. The 45-year-old finance manager from Victorville, Calif., sprung out of his usual seat in the left-field bleachers at Dodger Stadium, jumped as high and stretched as far as he could, and made a fantastic catch to pull down a home run ball San Diego Padres star Manny Machado hit off…