code: private void printHelpAndExit() {
      System.out.println("Common usages:");
      System.out.println("  gobblin-admin.sh jobs --list");
      System.out.println("  gobblin-admin.sh jobs --list --name JobName");
      System.out.println("  gobblin-admin.sh jobs --details --id job_id");
      System.out.println("  gobblin-admin.sh jobs --properties --<id|name> <job_id|JobName>");
      System.out.println();
  
      printHelpAndExit(0);
    }
docs: Print help and exit with a success code (0).