Doc: document proxy.config.ssl.server.multicert.exit_on_load_fail
Doc: document proxy.config.ssl.server.multicert.exit_on_load_fail

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