message: Remind users that default is a thing
diff: @@ -728,7 +728,7 @@ MatrixHandler.prototype._onAdminMessage = Promise.coroutine(function*(req, event
  }
  if (!["true", "false", "default"].includes(args[1].toLowerCase())) {
  let notice = new MatrixAction("notice",
  - "Parameter must be either true or false."
  + "Parameter must be either true, false or default."
  );
  yield this.ircBridge.sendMatrixAction(adminRoom, botUser, notice, req);
  return;
  