TS-4176: fixing clang analyzer warning
TS-4176: fixing clang analyzer warning

bryancall/trafficserver,persiaAziz/trafficserver,reveller/trafficserver,PSUdaemon/trafficserver,persiaAziz/trafficserver,clearswift/trafficserver,davidbz/trafficserver,rpufky/trafficserver,chitianhao/trafficserver,reveller/trafficserver,davidbz/trafficserver,bryancall/trafficserver,dyrock/trafficserver,chitianhao/trafficserver,rpufky/trafficserver,reveller/trafficserver,PSUdaemon/trafficserver,rahmalik/trafficserver,chenglongwei/trafficserver,chitianhao/trafficserver,duke8253/trafficserver,vmamidi/trafficserver,SolidWallOfCode/trafficserver,SolidWallOfCode/trafficserver,clearswift/trafficserver,chenglongwei/trafficserver,dyrock/trafficserver,rahmalik/trafficserver,chitianhao/trafficserver,rahmalik/trafficserver,PSUdaemon/trafficserver,taoyunxing/trafficserver,clearswift/trafficserver,duke8253/trafficserver,pbchou/trafficserver,clearswift/trafficserver,vmamidi/trafficserver,dyrock/trafficserver,rahmalik/trafficserver,dyrock/trafficserver,reveller/trafficserver,rpufky/trafficserver,persiaAziz/trafficserver,pbchou/trafficserver,rahmalik/trafficserver,persiaAziz/trafficserver,vmamidi/trafficserver,SolidWallOfCode/trafficserver,clearswift/trafficserver,pbchou/trafficserver,rpufky/trafficserver,chenglongwei/trafficserver,davidbz/trafficserver,chenglongwei/trafficserver,SolidWallOfCode/trafficserver,reveller/trafficserver,PSUdaemon/trafficserver,rpufky/trafficserver,bryancall/trafficserver,bryancall/trafficserver,chenglongwei/trafficserver,duke8253/trafficserver,taoyunxing/trafficserver,chenglongwei/trafficserver,clearswift/trafficserver,PSUdaemon/trafficserver,taoyunxing/trafficserver,rahmalik/trafficserver,persiaAziz/trafficserver,persiaAziz/trafficserver,dyrock/trafficserver,rpufky/trafficserver,duke8253/trafficserver,vmamidi/trafficserver,taoyunxing/trafficserver,vmamidi/trafficserver,PSUdaemon/trafficserver,persiaAziz/trafficserver,clearswift/trafficserver,SolidWallOfCode/trafficserver,reveller/trafficserver,taoyunxing/trafficserver,dyrock/trafficserver,duke8253/trafficserver,reveller/trafficserver,taoyunxing/trafficserver,persiaAziz/trafficserver,PSUdaemon/trafficserver,davidbz/trafficserver,chitianhao/trafficserver,vmamidi/trafficserver,bryancall/trafficserver,davidbz/trafficserver,taoyunxing/trafficserver,SolidWallOfCode/trafficserver,clearswift/trafficserver,bryancall/trafficserver,SolidWallOfCode/trafficserver,rahmalik/trafficserver,pbchou/trafficserver,rahmalik/trafficserver,duke8253/trafficserver,chitianhao/trafficserver,duke8253/trafficserver,dyrock/trafficserver,taoyunxing/trafficserver,reveller/trafficserver,chitianhao/trafficserver,clearswift/trafficserver,PSUdaemon/trafficserver,taoyunxing/trafficserver,rpufky/trafficserver,davidbz/trafficserver,chenglongwei/trafficserver,rpufky/trafficserver,PSUdaemon/trafficserver,rpufky/trafficserver,pbchou/trafficserver,chenglongwei/trafficserver,reveller/trafficserver,rahmalik/trafficserver,pbchou/trafficserver