message: Correct out-of-date reference to Python file
diff: @@ -295,7 +295,8 @@ Status FillFunctionBody(
  }
  // Graph to FunctionDef conversion. This code is closely modeled on the Python
  -// code in tensorflow/python/framework/function.py.
  +// function graph_to_function_def(), which is located in
  +// tensorflow/python/framework/graph_to_function_def.py.
  Status GraphToFunctionDef(const Graph& fn_body, const string& fn_name,
  bool append_hash_to_fn_name,
  const std::vector<const Node*>& body_nodes,
  