Clang Analyzer: Fix IpMap.cc false positives.
Clang Analyzer: Fix IpMap.cc false positives.

davidbz/trafficserver,duke8253/trafficserver,pbchou/trafficserver,davidbz/trafficserver,duke8253/trafficserver,SolidWallOfCode/trafficserver,vmamidi/trafficserver,davidbz/trafficserver,SolidWallOfCode/trafficserver,vmamidi/trafficserver,davidbz/trafficserver,SolidWallOfCode/trafficserver,vmamidi/trafficserver,dyrock/trafficserver,dyrock/trafficserver,duke8253/trafficserver,SolidWallOfCode/trafficserver,bryancall/trafficserver,davidbz/trafficserver,duke8253/trafficserver,bryancall/trafficserver,vmamidi/trafficserver,pbchou/trafficserver,pbchou/trafficserver,vmamidi/trafficserver,bryancall/trafficserver,pbchou/trafficserver,SolidWallOfCode/trafficserver,pbchou/trafficserver,bryancall/trafficserver,pbchou/trafficserver,bryancall/trafficserver,davidbz/trafficserver,dyrock/trafficserver,duke8253/trafficserver,dyrock/trafficserver,duke8253/trafficserver,dyrock/trafficserver,SolidWallOfCode/trafficserver,vmamidi/trafficserver,SolidWallOfCode/trafficserver,bryancall/trafficserver,duke8253/trafficserver,dyrock/trafficserver,dyrock/trafficserver