ALLENTOWN — Nick Rumbelow had Lehigh Valley pinch-hitter Mitch Walding facing an 0-2 count with two on and two out in the bottom of the seventh inning. Then the Scranton/Wilkes-Barre RailRiders closer uncorked a breaking ball that got away and hit the backstop. Suddenly the IronPigs had two men in scoring position — thanks to the wild pitch — and the crowd at Coca-Cola Park woke up. With the Lehigh Valley faithful waving their rally towels from the previous night’s tilt, Rumbelow’s next pitch was a fastball out of the zone and Walding, who was the go-ahead run, had worked his count even. But Rumbelow wasn’t rattled.