minor #58472 CS: clean some whitespaces/indentation (keradus)

This PR was squashed before being merged into the 7.2 branch.

Discussion
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CS: clean some whitespaces/indentation

| Q             | A
| ------------- | ---
| Branch?       | 7.2
| Bug fix?      | no
| New feature?  | no <!-- please update src/**/CHANGELOG.md files -->
| Deprecations? | no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Issues        | Fix CS
| License       | MIT

Commits
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d0f63b8afa1 CS: clean some whitespaces/indentation

Author: nicolas-grekas