Regenerate pub sources.

sdk/lib/_internal/pub_generated/test/run/nonexistent_dependency_test.dart

Index: sdk/lib/_internal/pub_generated/test/run/nonexistent_dependency_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/run/nonexistent_dependency_test.dart b/sdk/lib/_internal/pub_generated/test/run/nonexistent_dependency_test.dart
index c22838e6450267f6a6112aee4b090e4737e3c35a..f57ce49f9bbecc02015d21f7152d7817d14c0541 100644
--- a/sdk/lib/_internal/pub_generated/test/run/nonexistent_dependency_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/run/nonexistent_dependency_test.dart
@@ -1,10 +1,16 @@
+// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS 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.
+
 import '../../lib/src/exit_codes.dart' as exit_codes;
 import '../descriptor.dart' as d;
 import '../test_pub.dart';
+
 main() {
   initConfig();
   integration('Errors if the script is in an unknown package.', () {
     d.dir(appPath, [d.appPubspec()]).create();
+
     var pub = pubRun(args: ["foo:script"]);
     pub.stderr.expect(
         'Could not find package "foo". Did you forget to add a ' 'dependency?');