Format all tests.

tests/standalone/io/http_ipv6_test.dart

Index: tests/standalone/io/http_ipv6_test.dart
diff --git a/tests/standalone/io/http_ipv6_test.dart b/tests/standalone/io/http_ipv6_test.dart
index b0d2acf4980dff04bf80fd20073751600a4760ab..fe61c0823df2844ef7c64f07890a92900b179f7c 100644
--- a/tests/standalone/io/http_ipv6_test.dart
+++ b/tests/standalone/io/http_ipv6_test.dart
@@ -28,20 +28,19 @@ void testHttpIPv6() {
     var client = new HttpClient();
     var url = Uri.parse('http://[::1]:${server.port}/xxx');
     Expect.equals(url.host, '::1');
-    client.openUrl('GET', url)
+    client
+        .openUrl('GET', url)
         .then((request) => request.close())
         .then((response) {
-          Expect.equals(response.statusCode, HttpStatus.OK);
-        }).whenComplete(() {
-          server.close();
-          client.close();
-          asyncEnd();
-        });
+      Expect.equals(response.statusCode, HttpStatus.OK);
+    }).whenComplete(() {
+      server.close();
+      client.close();
+      asyncEnd();
+    });
   });
 }
 
-
-
 void main() {
   testHttpIPv6();
 }