Fix presubmit check failure.

NOTRY=true
TBR=bmeurer@chromium.org

Review-Url: https://codereview.chromium.org/2044593003
Cr-Commit-Position: refs/heads/master@{#36770}

src/snapshot/serialize.cc

@@ -2531,4 +2531,6 @@ SerializedCodeData* SerializedCodeData::FromCachedData(Isolate* isolate,
   delete scd;
   return NULL;
 }
-} }  // namespace v8::internal
+
+}  // namespace internal
+}  // namespace v8