Regenerate pub sources.

sdk/lib/_internal/pub_generated/test/list_package_dirs/lockfile_error_test.dart

Index: sdk/lib/_internal/pub_generated/test/list_package_dirs/lockfile_error_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/list_package_dirs/lockfile_error_test.dart b/sdk/lib/_internal/pub_generated/test/list_package_dirs/lockfile_error_test.dart
index 391715053693e5259f3da6865650659fbc56e62c..d9b872a7c5ffe83f6e1fa33e2bacd08935090f94 100644
--- a/sdk/lib/_internal/pub_generated/test/list_package_dirs/lockfile_error_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/list_package_dirs/lockfile_error_test.dart
@@ -1,15 +1,22 @@
+// 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 d.file.
+
 import 'package:path/path.dart' as path;
 import 'package:scheduled_test/scheduled_test.dart';
+
 import '../../lib/src/exit_codes.dart' as exit_codes;
 import '../../lib/src/io.dart';
 import '../descriptor.dart' as d;
 import '../test_pub.dart';
+
 main() {
   initConfig();
   integration("reports the lockfile path when there is an error in it", () {
     d.dir(
         appPath,
         [d.appPubspec(), d.file("pubspec.lock", "some bad yaml")]).create();
+
     schedulePub(args: ["list-package-dirs", "--format=json"], outputJson: {
       "error": contains('The lockfile must be a YAML mapping.'),
       "path": canonicalize(path.join(sandboxDir, appPath, "pubspec.lock"))