message: updated goldens to reflect change to summaries.merge_all api
diff: @@ -50,7 +50,7 @@ tf_module {
  }
  member_method {
  name: "merge_all"
  - argspec: "args=[\'key\'], varargs=None, keywords=None, defaults=[\'summaries\'], "
  + argspec: "args=[\'key\', \'scope\'], varargs=None, keywords=None, defaults=[\'summaries\', \'None\'], "
  }
  member_method {
  name: "scalar"
  