Fix typos

[kianmeng]

Summary of changes

I'll review the commits, so I mostly want to understand the "why" rather than the "what"

Checklist

• [ ] New functions have typespecs, changed functions were updated
• [ ] Same for documentation, including moduledocs
• [ ] Tests were added or updated to cover changes
• [ ] Commits were squashed into a single coherent commit

Licensing/Copyright

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[kianmeng]

@bitwalker Any updates on this?