Fix indentation in TimelinePanel

src/components/structures/TimelinePanel.js

@@ -1194,7 +1194,7 @@ const TimelinePanel = React.createClass({
         if (this.state.events.length == 0 && !this.state.canBackPaginate && this.props.empty) {
             return (
                 <div className={this.props.className + " mx_RoomView_messageListWrapper"}>
-                        <div className="mx_RoomView_empty">{ this.props.empty }</div>
+                    <div className="mx_RoomView_empty">{this.props.empty}</div>
                 </div>
             );
         }