message: Send long messages as message.txt
diff: @@ -953,7 +953,7 @@ export class MatrixHandler {
  event.content.body = "sent a long message: ";
  // Create a file event to reflect the recent upload
  - const mAction = MatrixAction.fromEvent(event, this.mediaUrl);
  + const mAction = MatrixAction.fromEvent(event, this.mediaUrl, "message.txt");
  const bigFileIrcAction = IrcAction.fromMatrixAction(mAction);
  if (!bigFileIrcAction) {
  return;
  