TS-4804: Add r into total_written only if r > 0
TS-4804: Add r into total_written only if r > 0

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