Use `child` instead of `children` (#3718)

This PR refactors some code where we were using `children` when we could
have used `child` instead.

Release Notes:

- N/A
4e07167288Marshall Bowers committed on 12/19/2023, 6:49:52 PM· committed by GitHubparenta3bab25
1 file changedLine totals unavailable