[seq2seq] get_git_info fails gracefully (#7843)
[seq2seq] get_git_info fails gracefully (#7843)

Co-authored-by: Sam Shleifer <3738106568efe2af774328bb7c694b0424580931@gmail.com>
huggingface/pytorch-transformers,huggingface/transformers,huggingface/transformers,huggingface/transformers,huggingface/transformers