Converts to stack-based buffer for record lookup during logging
Converts to stack-based buffer for record lookup during logging

Prior version leaked memory for every request if the log configuration included
a record-based lookup(eg %<{proxy.process.version.server.build_number}record>)
in the log specification.

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