Maven spews out far too many lines of output to my taste (I like the Unix way: no news is good news).
I want to get rid of all [INFO] lines, but I couldn
Maven 3.1.x uses SLF4j for logging, you can find instructions how to configure it at https://maven.apache.org/maven-logging.html
In short: Either modify ${MAVEN_HOME}/conf/logging/simplelogger.properties, or set the same properties via the MAVEN_OPTS environment variable.
For example: setting MAVEN_OPTS to -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn configures the logging of the batch mode transfer listener, and -Dorg.slf4j.simpleLogger.defaultLogLevel=warn sets the default log level.