[data_loader] Fix a log message that didn't use all of its args

[dbort]

Fixes issue #3189

[pytorch-bot]

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✅ You can merge normally! (2 Unrelated Failures)

As of commit 634bbab with merge base 9441003 ():

BROKEN TRUNK - The following jobs failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• pull / test-eval_llama-mmlu-linux / linux-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• pull / test-llava-runner-linux / linux-job (gh) (trunk failure)
  ##[error]The operation was canceled.

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[swolchok]

personally I would just drop the raw errno value, but if you're sure you want to include it go ahead

[dbort]

All of the other logs in this file print both, just going for consistency. Thanks for the quick review!