Fix for() loop, correctly calculate the value of seg_in_use within Vol::dir_check()
Fix for() loop, correctly calculate the value of seg_in_use within Vol::dir_check()

SolidWallOfCode/trafficserver,chitianhao/trafficserver,bryancall/trafficserver,davidbz/trafficserver,bryancall/trafficserver,chitianhao/trafficserver,chitianhao/trafficserver,duke8253/trafficserver,vmamidi/trafficserver,pbchou/trafficserver,pbchou/trafficserver,duke8253/trafficserver,vmamidi/trafficserver,SolidWallOfCode/trafficserver,dyrock/trafficserver,vmamidi/trafficserver,duke8253/trafficserver,chitianhao/trafficserver,pbchou/trafficserver,chitianhao/trafficserver,SolidWallOfCode/trafficserver,chitianhao/trafficserver,SolidWallOfCode/trafficserver,bryancall/trafficserver,SolidWallOfCode/trafficserver,duke8253/trafficserver,davidbz/trafficserver,dyrock/trafficserver,SolidWallOfCode/trafficserver,chitianhao/trafficserver,pbchou/trafficserver,pbchou/trafficserver,duke8253/trafficserver,duke8253/trafficserver,bryancall/trafficserver,pbchou/trafficserver,duke8253/trafficserver,dyrock/trafficserver,vmamidi/trafficserver,davidbz/trafficserver,bryancall/trafficserver,dyrock/trafficserver,vmamidi/trafficserver,vmamidi/trafficserver,davidbz/trafficserver,dyrock/trafficserver,davidbz/trafficserver,dyrock/trafficserver,dyrock/trafficserver,davidbz/trafficserver,bryancall/trafficserver,SolidWallOfCode/trafficserver