TS-3862 Allocate memory for the lookup URL if needed
TS-3862 Allocate memory for the lookup URL if needed

There are some cases where it might not already be allocated,
so we should ensure that we do so. Thanks Sudheer.

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