pageRouteBuilder docs have an extraneous blank line

[Hixie]

https://master-api.flutter.dev/flutter/widgets/WidgetsApp/pageRouteBuilder.html:

pageRouteBuilder property

PageRoute<T> Function<T>(
RouteSettings settings,

WidgetBuilder builder
) pageRouteBuilder
final

The PageRoute generator callback used when the app is navigated to a named route.

Source is:

/// The signature of [WidgetsApp.pageRouteBuilder].
///
/// Creates a [PageRoute] using the given [RouteSettings] and [WidgetBuilder].
typedef PageRouteFactory = PageRoute<T> Function<T>(RouteSettings settings, WidgetBuilder builder);

//...

  /// The [PageRoute] generator callback used when the app is navigated to a
  /// named route.
  ///
  /// This callback can be used, for example, to specify that a [MaterialPageRoute]
  /// or a [CupertinoPageRoute] should be used for building page transitions.
  final PageRouteFactory pageRouteBuilder;

What's weird is that the actual signature is a typedef but that seems to get elided here?