implement fixes and comments for DisableComment rubocop

[koddsson]

(Sorry I created this PR originally with gh pr create --fill, I didn't realise that would create a PR with empty PR body)

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This PR should fix the last of the rubocop violations that are reported after #18842 is merged.

[request-info]

Please provide a better issue/pull request title and/or description!

[koddsson]

Please provide a better issue/pull request title and/or description!

Done!

[MikeMcQuaid]

Thanks @koddsson!