Style nits

packages/flutter/test/cupertino/date_picker_test.dart

@@ -854,7 +854,7 @@ void main() {
 
       await expectLater(
         find.byType(CupertinoDatePicker),
-        matchesSkiaGoldFile('date_picker_test.datetime.initial.png')
+        matchesSkiaGoldFile('date_picker_test.datetime.initial.png'),
       );
 
       // Slightly drag the hour component to make the current hour off-center.

packages/flutter/test/rendering/localized_fonts_test.dart

@@ -49,7 +49,7 @@ void main() {
 
       await expectLater(
         find.byType(RichText),
-      matchesSkiaGoldFile('localized_fonts.rich_text.styled_text_span.png'),
+        matchesSkiaGoldFile('localized_fonts.rich_text.styled_text_span.png'),
       );
     },
   );

packages/flutter/test/widgets/clip_test.dart

@@ -328,7 +328,7 @@ void main() {
     );
     await expectLater(
       find.byType(RepaintBoundary).first,
-      matchesSkiaGoldFile('clip.ClipRectOverlay.png')
+      matchesSkiaGoldFile('clip.ClipRectOverlay.png'),
     );
   });
 

packages/flutter/test/widgets/text_golden_test.dart

@@ -267,7 +267,7 @@ void main() {
     );
     await expectLater(
       find.byType(Container),
-      matchesSkiaGoldFile('text_golden.Strut.1.png')
+      matchesSkiaGoldFile('text_golden.Strut.1.png'),
     );
   },);
 
@@ -295,7 +295,7 @@ void main() {
     );
     await expectLater(
       find.byType(Container),
-      matchesSkiaGoldFile('text_golden.Strut.2.png')
+      matchesSkiaGoldFile('text_golden.Strut.2.png'),
     );
   },);
 
@@ -346,7 +346,7 @@ void main() {
     );
     await expectLater(
       find.byType(Container),
-      matchesSkiaGoldFile('text_golden.Strut.3.png')
+      matchesSkiaGoldFile('text_golden.Strut.3.png'),
     );
   },);