[3.13] Fix grammar typo in Doc/c-api/arg.rst (GH-130741)

[miss-islington]

(cherry picked from commit 37145cb)

Co-authored-by: Arijit Kumar Das arijitkrdas2004@outlook.com

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📚 Documentation preview 📚: https://cpython-previews--130759.org.readthedocs.build/

[ghost]

All commit authors signed the Contributor License Agreement.

[picnixz]

@hugovk That's weird, the CLA was signed on the original PR. What happened here?

[hugovk]

I think it's because the user probably has a gmail.com email in their GitHub account (used for #130741) and signed the CLA with that, but has a different outlook.com email in the commit used here: https://github.com/python/cpython/pull/130759.patch

[picnixz]

So, IIUC, we have a commit whose CLA that is signed with a different email than the commit's email. Since we already merged that commit in main, can we assume that the CLA was properly signed? (can you unsign the CLA?)

[hugovk]

Probably, but the CLA bot is a required status check. The easiest thing is for the contributor to also sign the CLA with the other email. (Another option is to amend the commit in the backport and force push.)

@ArijitKD Please could you also sign the CLA with your outlook.com email address? See #130759 (comment).

[ArijitKD]

@hugovk CLA signed. That outlook.com is actually not the email I use for github commits. Probably got swapped somehow. Anyways, this is ready to be merged now!

[hugovk]

Thank you!