Run dartfmt on pkg/front_end/lib.

pkg/front_end/lib/src/fasta/bin/generate_dart_libraries.dart

Index: pkg/front_end/lib/src/fasta/bin/generate_dart_libraries.dart
diff --git a/pkg/front_end/lib/src/fasta/bin/generate_dart_libraries.dart b/pkg/front_end/lib/src/fasta/bin/generate_dart_libraries.dart
index 60717072e72135f014b93f547cc75cb79079cfb5..24ad73f1fede022e7f3aaeefff0627e030ed4c04 100644
--- a/pkg/front_end/lib/src/fasta/bin/generate_dart_libraries.dart
+++ b/pkg/front_end/lib/src/fasta/bin/generate_dart_libraries.dart
@@ -2,9 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-import 'package:sdk_library_metadata/libraries.dart' show
-    LibraryInfo,
-    libraries;
+import 'package:sdk_library_metadata/libraries.dart'
+    show LibraryInfo, libraries;
 
 void main(_) {
   libraries.forEach((String name, LibraryInfo info) {