log: Add logging when using split_batches and per_device_train_batch_size (#38633)
* log: Add logging when user uses split_batches and per_device_train_batch_size
* refactor: remove whitespace from blank line
* Update src/transformers/training_args.py
Change logging level to info
Co-authored-by: Marc Sun <57196510+SunMarc@users.noreply.github.com>
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Co-authored-by: Marc Sun <57196510+SunMarc@users.noreply.github.com>