transformers: FlaubertTokenizer: do_lowercase_and_remove_accent: make the logger warning actionable (don't only tell what's wrong, rather suggest what could be done about that)

[kirisakow]

Please, make the logger warning below actionable (don't only tell what's wrong, rather suggest what could be done about that):

transformers/src/transformers/models/flaubert/tokenization_flaubert.py

Lines 208 to 209 in e6a8063

	"`do_lowercase_and_remove_accent` is passed as a keyword argument, but this won't do anything."
	" `FlaubertTokenizer` will always set it to `False`."

Here's more context:

transformers/src/transformers/models/flaubert/tokenization_flaubert.py

Lines 205 to 212 in e6a8063

	do_lowercase_and_remove_accent = kwargs.pop("do_lowercase_and_remove_accent", None)
	if do_lowercase_and_remove_accent is not None:
	logger.warning(
	"`do_lowercase_and_remove_accent` is passed as a keyword argument, but this won't do anything."
	" `FlaubertTokenizer` will always set it to `False`."
	)
	# always `False`
	self.do_lowercase_and_remove_accent = False

The community might appreciate. Thank you HF 🤗