Updates args in tf squad example. (#4820)
Updates args in tf squad example. (#4820)

Co-authored-by: Daniel Shan <e87ac54c9677138a10d838824dffee7452b3a6bc@workday.com>
huggingface/transformers,huggingface/pytorch-transformers,huggingface/transformers,huggingface/transformers,huggingface/transformers