Fixed pthread mutex init issue with cache test
Fixed pthread mutex init issue with cache test

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