Fix typo in http_body_test.

pkg/http_server/test/http_body_test.dart

 // Copyright (c) 2013, 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 'dart:io';
 import 'dart:convert';
 
 import 'package:http_server/http_server.dart';
 import 'package:unittest/unittest.dart';
 
@@ skipping 138 matching lines @@
                   ContentType.parse(mimeType);
             }
             request.add(content);
             return request.close();
           })
           .then((response) {
             if (shouldFail) {
               expect(response.statusCode, equals(HttpStatus.BAD_REQUEST));
             }
             return response.drain();
-          )}
+          })
           .then((_) {
             client.close();
             server.close();
           });
     });
   }
 
   test("text/plain", "body".codeUnits, "body", "text");
   test("text/plain; charset=utf-8",
        "body".codeUnits,
@@ skipping 158 matching lines @@
   test('application/x-www-form-urlencoded',
        'name=%C8%A4%C8%A4'.codeUnits,
        { 'name' : 'ȤȤ' },
        "form");
 }
 
 void main() {
   testHttpClientResponseBody();
   testHttpServerRequestBody();
 }