TS-1475: Fix leaked object in LogBuffer.cc.
TS-1475: Fix leaked object in LogBuffer.cc.

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