Regenerate pub sources.

sdk/lib/_internal/pub_generated/test/transformer/configuration/configuration_defaults_to_empty_map_test.dart

Index: sdk/lib/_internal/pub_generated/test/transformer/configuration/configuration_defaults_to_empty_map_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/transformer/configuration/configuration_defaults_to_empty_map_test.dart b/sdk/lib/_internal/pub_generated/test/transformer/configuration/configuration_defaults_to_empty_map_test.dart
index 0f9a52f1d6fe43b115c41d3c7ccc7b7c415bb0e9..514676ede7283202ab9a1166bc0c468197ca1d11 100644
--- a/sdk/lib/_internal/pub_generated/test/transformer/configuration/configuration_defaults_to_empty_map_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/transformer/configuration/configuration_defaults_to_empty_map_test.dart
@@ -1,8 +1,15 @@
+// Copyright (c) 2013, 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 'dart:convert';
+
 import '../../descriptor.dart' as d;
 import '../../test_pub.dart';
 import '../../serve/utils.dart';
+
 final transformer = """
 import 'dart:async';
 import 'dart:convert';
@@ -25,6 +32,7 @@ class ConfigTransformer extends Transformer {
   }
 }
 """;
+
 main() {
   initConfig();
   withBarbackVersions("any", () {
@@ -35,7 +43,9 @@ main() {
         }),
             d.dir("lib", [d.dir("src", [d.file("transformer.dart", transformer)])]),
             d.dir("web", [d.file("foo.txt", "foo")])]).create();
+
       createLockFile('myapp', pkg: ['barback']);
+
       var server = pubServe();
       requestShouldSucceed("foo.json", JSON.encode({}));
       endPubServe();