| Index: sdk/lib/_internal/dartdoc/test/dartdoc_test.dart
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| diff --git a/sdk/lib/_internal/dartdoc/test/dartdoc_test.dart b/sdk/lib/_internal/dartdoc/test/dartdoc_test.dart
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| index 3b9b534ebd3b03db1970001e04323bb45c916573..f93c6fc35c41328600587d2c3f119fa3c521ef84 100644
 | 
| --- a/sdk/lib/_internal/dartdoc/test/dartdoc_test.dart
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| +++ b/sdk/lib/_internal/dartdoc/test/dartdoc_test.dart
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| @@ -146,7 +146,7 @@ Future _runDartdoc(List<String> arguments, {int exitCode: 0}) {
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|    var dartdoc = 'bin/dartdoc.dart';
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|    arguments.insertRange(0, 1, dartdoc);
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|    return Process.run(dartBin, arguments)
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| -      .transform((result) {
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| +      .then((result) {
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|          expect(result.exitCode, exitCode);
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|        });
 | 
|  }
 | 
| 
 |