message: Slightly modify error message
diff: @@ -170,7 +170,7 @@ Status RunRestore(const RunOptions& run_options, const string& export_dir,
  variables_directory, MetaFilename(kSavedModelVariablesFilename));
  if (!Env::Default()->FileExists(variables_index_path).ok()) {
  LOG(INFO) << "The specified SavedModel has no variables; no checkpoints "
  - "were restored. Failed to restore from " << variables_index_path;
  + "were restored. File does not exist: " << variables_index_path;
  return Status::OK();
  }
  const string variables_path =
  