Regenerate pub sources.

sdk/lib/_internal/pub_generated/test/transformer/exclusion/works_on_transformer_group_test.dart

Index: sdk/lib/_internal/pub_generated/test/transformer/exclusion/works_on_transformer_group_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/transformer/exclusion/works_on_transformer_group_test.dart b/sdk/lib/_internal/pub_generated/test/transformer/exclusion/works_on_transformer_group_test.dart
index b5b8927227c9f30cf52acd15e19b0a1b38c7dbbf..f4d6acbc5711937f28d43ff1a4c6c7c50bb6ed8b 100644
--- a/sdk/lib/_internal/pub_generated/test/transformer/exclusion/works_on_transformer_group_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/transformer/exclusion/works_on_transformer_group_test.dart
@@ -1,7 +1,13 @@
+// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS d.file
+// 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.
+
 library pub_tests;
+
 import '../../descriptor.dart' as d;
 import '../../test_pub.dart';
 import '../../serve/utils.dart';
+
 const GROUP = """
 import 'package:barback/barback.dart';
 
@@ -13,6 +19,7 @@ class RewriteGroup implements TransformerGroup {
   Iterable<Iterable> get phases => [[new RewriteTransformer.asPlugin()]];
 }
 """;
+
 main() {
   initConfig();
   withBarbackVersions("any", () {
@@ -40,7 +47,9 @@ main() {
                     d.file("a.txt", "a.txt"),
                     d.file("b.txt", "b.txt"),
                     d.file("c.txt", "c.txt")])]).create();
+
       createLockFile('myapp', pkg: ['barback']);
+
       pubServe();
       requestShould404("a.out");
       requestShouldSucceed("b.out", "b.txt.out");