message: General cleanup of admin command
diff: @@ -701,7 +701,7 @@ MatrixHandler.prototype._onAdminMessage = Promise.coroutine(function*(req, event
  return;
  }
  else if (cmd === "!feature") {
  - if (args.length === 0 || !USER_FEATURES.includes(args[0].toLowerCase()) {
  + if (args.length === 0 || !USER_FEATURES.includes(args[0].toLowerCase())) {
  let notice = new MatrixAction("notice",
  "Missing or unknown feature flag. Must be one of: " + USER_FEATURES.join(", ")
  );
  @@ -711,7 +711,7 @@ MatrixHandler.prototype._onAdminMessage = Promise.coroutine(function*(req, event
  const featureFlag = args[0];
  const features = yield this.ircBridge.getStore().getUserFeatures(event.user_id);
  if (!args[1]) {
  - const val = yield features[featureFlag];
  + const val = features[featureFlag];
  let msg = `'${featureFlag}' is `;
  if (val === true) {
  msg += "enabled.";
  @@ -719,7 +719,7 @@ MatrixHandler.prototype._onAdminMessage = Promise.coroutine(function*(req, event
  else if (val === false) {
  msg += "disabled.";
  }
  - else (val === false) {
  + else {
  msg += "set to the default value.";
  }
  let notice = new MatrixAction("notice", msg);
  