message: fixed docstring for check_validation_split_arg
diff: @@ -215,8 +215,7 @@ def check_validation_split_arg(validation_split, subset, shuffle, seed):
  """Raise errors in case of invalid argument values.
  Args:
  - shuffle: Whether to shuffle the data. Default: True.
  - If set to False, sorts the data in alphanumeric order.
  + shuffle: Whether to shuffle the data. Either True or False.
  seed: Optional random seed for shuffling and transformations.
  validation_split: Optional float between 0 and 1,
  fraction of data to reserve for validation.
  