LOG4J2-1179 various small improvements
LOG4J2-1179 various small improvements

xnslong/logging-log4j2,GFriedrich/logging-log4j2,lqbweb/logging-log4j2,codescale/logging-log4j2,codescale/logging-log4j2,xnslong/logging-log4j2,lqbweb/logging-log4j2,GFriedrich/logging-log4j2,apache/logging-log4j2,xnslong/logging-log4j2,apache/logging-log4j2,lqbweb/logging-log4j2,GFriedrich/logging-log4j2,apache/logging-log4j2,codescale/logging-log4j2