[rfw,flutter_markdown] Apparently you need a comma to end an //ignore (flutter#5582)

This is already covered by the existing changelog.

Author: Hixie

packages/flutter_markdown/lib/src/builder.dart

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// ignore: unnecessary_import (see https://github.com/flutter/flutter/pull/138881)
+// ignore: unnecessary_import, see https://github.com/flutter/flutter/pull/138881
 import 'dart:ui';
 
 import 'package:flutter/gestures.dart';

packages/rfw/lib/src/flutter/argument_decoders.dart

@@ -9,7 +9,7 @@
 // This file is hand-formatted.
 
 import 'dart:math' as math show pi;
-// ignore: unnecessary_import (see https://github.com/flutter/flutter/pull/138881)
+// ignore: unnecessary_import, see https://github.com/flutter/flutter/pull/138881
 import 'dart:ui' show FontFeature; // TODO(ianh): https://github.com/flutter/flutter/issues/87235
 
 import 'package:flutter/material.dart';

packages/rfw/lib/src/flutter/core_widgets.dart

@@ -8,7 +8,7 @@
 
 // This file is hand-formatted.
 
-// ignore: unnecessary_import (see https://github.com/flutter/flutter/pull/138881)
+// ignore: unnecessary_import, see https://github.com/flutter/flutter/pull/138881
 import 'dart:ui' show FontFeature;
 
 import 'package:flutter/gestures.dart' show DragStartBehavior;