message: Replace newlines with ". " so we can fit them on.
diff: @@ -1287,6 +1287,9 @@ MatrixHandler.prototype._sendIrcAction = Promise.coroutine(
  rplName = this._eventCache.get(eventId).sender;
  rplSource = this._eventCache.get(eventId).body;
  }
  + // Replace newlines so we can fit this in the message body.
  + // It's not a perfect solution but it's legible.
  + rplSource = rplSource.replace(/\v/, '. ');
  rplSource = rplSource.substr(0, REPLY_SOURCE_MAX_LENGTH) +
  (rplSource.length > REPLY_SOURCE_MAX_LENGTH ? "..." : "");
  const rplText = match[3];
  