message: Constify requires
diff: * Represents a single IRC server from config.yaml
  */
  "use strict";
  -var logging = require("../logging");
  -var IrcClientConfig = require("../models/IrcClientConfig");
  -var log = logging.get("IrcServer");
  +const logging = require("../logging");
  +const IrcClientConfig = require("../models/IrcClientConfig");
  +const log = logging.get("IrcServer");
  const GROUP_ID_REGEX = /^\+\S+:\S+$/;
  