message: Fix typo in graph transforms error message
diff: @@ -34,7 +34,7 @@ Status RemoveAttribute(const GraphDef& input_graph_def,
  if (!context.params.count("attribute_name") ||
  (context.params.at("attribute_name").size() != 1)) {
  return errors::InvalidArgument(
  - "remove_nodes expects exactly one 'attribute_name' "
  + "remove_attribute expects exactly one 'attribute_name' "
  "argument, e.g. remove_attribute(op_name=Mul, attribute_name=foo)");
  }
  