Enable Maven timestamps: copy to $MAVEN/conf/logging/

simplelogger.properties

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org.slf4j.simpleLogger.dateTimeFormat=HH:mm:ss
org.slf4j.simpleLogger.defaultLogLevel=info
org.slf4j.simpleLogger.showDateTime=true
org.slf4j.simpleLogger.showThreadName=false
org.slf4j.simpleLogger.showLogName=false
#org.slf4j.simpleLogger.showShortLogName=true
org.slf4j.simpleLogger.logFile=System.out
org.slf4j.simpleLogger.levelInBrackets=true
org.slf4j.simpleLogger.log.Sisu=info
org.slf4j.simpleLogger.warnLevelString=WARNING%