TS-3072: fix newer compiler warnings.
TS-3072: fix newer compiler warnings.

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