header_rewrite: Allow for relative path to geo database files (#7727)
header_rewrite: Allow for relative path to geo database files (#7727)


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