Fix two tiny typos in pipelines/base.py::Pipeline::_sanitize_parameters()'s docstring

[sadra-barikbin]

Hi there!
To fix two tiny typos in pipelines/base.py::Pipeline::_sanitize_parameters()'s docstring.

@Narsil

[amyeroberts]

Thanks for fixing!

[sadra-barikbin]

One more thing. We have False for default value of clean_up_tokenization_spaces argument in TextGenerationPipeline's docstring:

transformers/src/transformers/pipelines/text_generation.py

Lines 207 to 208 in 593230f

	clean_up_tokenization_spaces (`bool`, *optional*, defaults to `False`):
	Whether or not to clean up the potential extra spaces in the text output.

but its default value in TextGenerationPipeline::postprocess is True:

transformers/src/transformers/pipelines/text_generation.py

Line 336 in 593230f

def postprocess(self, model_outputs, return_type=ReturnType.FULL_TEXT, clean_up_tokenization_spaces=True):

[HuggingFaceDocBuilderDev]

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[amyeroberts]

@sadra-barikbin Good spot! Could you add a fix for the docstring in this PR too?

[sadra-barikbin]

The pipelines in text2text_generation.py class have clean_up_tokenization_spaces=False as default. This has been the desired behavior?

[amyeroberts]

@sadra-barikbin Yes, I believe so. Changing the default behaviour would be a breaking change, so we should keep as-is