static void help() {
        System.out.println();
        System.out.println("System properties:");
        System.out.println(" - " + APPNAME + ".rpcListenPort (" + DEFAULT_RPC_LISTEN_PORT + ")");
        System.out.println(" - " + APPNAME + ".queue.size (" + HandlerThread.DEFAULT_QUEUESIZE + ")");
        System.out.println();
    }
Sets up the listen port and starts the Listener.  Then waits for
Listener to exit.
logserver/src/main/java/com/yahoo/logserver/Server.java