message: Remove spurious void
diff: @@ -36,7 +36,7 @@ export default class AdvancedRoomSettingsTab extends React.Component {
  };
  }
  - componentWillMount(): void {
  + componentWillMount() {
  // we handle lack of this object gracefully later, so don't worry about it failing here.
  MatrixClientPeg.get().getRoom(this.props.roomId).getRecommendedVersion().then((v) => {
  this.setState({upgradeRecommendation: v});
  