message: document sauce port config
diff: "visibility": {
  "help": "Set job visibility to 'public', 'public restricted', 'share', 'team' or 'private'",
  "full": "visibility"
  + },
  + "port": {
  + "help": "Select an alternative port for Sauce Connect (default is 4445)",
  + "full": "port"
  }
  }
  },
  