message: Fixed mode in load_inputs_from_input_arg_string
  NPY files are binary and should be opened with mode "rb".
diff: @@ -544,7 +544,7 @@ def load_inputs_from_input_arg_string(inputs_str, input_exprs_str,
  input_examples = preprocess_input_examples_arg_string(input_examples_str)
  for input_tensor_key, (filename, variable_name) in inputs.items():
  - data = np.load(file_io.FileIO(filename, mode='r'))
  + data = np.load(file_io.FileIO(filename, mode='rb'))
  # When a variable_name key is specified for the input file
  if variable_name:
  