Fix classification script: enable dynamic padding with truncation (#9554)
Fix classification script: enable dynamic padding with truncation (#9554)

Co-authored-by: Pavel Tarashkevich <e7e17c8249fa3725bee3cd2c29611cad15062cee@orange.com>
huggingface/transformers,huggingface/transformers,huggingface/transformers,huggingface/transformers,huggingface/pytorch-transformers