public void usage() {
    info(wrap(helpMap.get("launcher"), 80, "\t"));
    info(TWO_NEW_LINES + "START" + TWO_NEW_LINES);
    help(Command.START);
    info("STATUS" + TWO_NEW_LINES);
    help(Command.STATUS);
    info("STOP" + TWO_NEW_LINES);
    help(Command.STOP);
  }
Displays usage information on the proper invocation of the ServerLauncher from the command-line
to standard output.

@see #help(ServerLauncher.Command)
geode-core/src/main/java/org/apache/geode/distributed/ServerLauncher.java