Print error output from DumpRenderTree updater in test.dart.

tools/testing/dart/test_suite.dart

 // Copyright (c) 2012, 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.
 
 /**
  * Classes and methods for enumerating and preparing tests.
  *
  * This library includes:
  *
  * - Creating tests by listing all the Dart files in certain directories,
@@ skipping 1009 matching lines @@
              "containsLeadingHash": containsLeadingHash,
              "isolateStubs": isolateStubs,
              "containsDomImport": containsDomImport,
              "isLibraryDefinition": isLibraryDefinition,
              "containsSourceOrImport": containsSourceOrImport,
              "numStaticTypeAnnotations": numStaticTypeAnnotations,
              "numCompileTimeAnnotations": numCompileTimeAnnotations};
   }
 
   List<List<String>> getVmOptions(Map optionsFromFile) {
-    bool needsVmOptions =
-        Contains(configuration['compiler'], const ['none', 'dart2dart', 'dartc']) &&
-        Contains(configuration['runtime'], const ['none', 'vm', 'drt', 'dartium']);
+    bool needsVmOptions = Contains(configuration['compiler'],
+                                   const ['none', 'dart2dart', 'dartc']) &&
+                          Contains(configuration['runtime'],
+                                   const ['none', 'vm', 'drt', 'dartium']);
     if (!needsVmOptions) return [[]];
     return optionsFromFile['vmOptions'];
   }
 }
 
 
 class DartcCompilationTestSuite extends StandardTestSuite {
   List<String> _testDirs;
   int activityCount = 0;
 
@@ skipping 373 matching lines @@
  * $noCrash tests are expected to be flaky but not crash
  * $pass tests are expected to pass
  * $failOk tests are expected to fail that we won't fix
  * $fail tests are expected to fail that we should fix
  * $crash tests are expected to crash that we should fix
  * $timeout tests are allowed to timeout
 """;
     print(report);
    }
 }