Fix minor spelling errors.
This change was performed with:
codespell --ignore-words-list 'requestor' -w("requestor" is part of the X11 API, and if we allow codespell to rewrite it it would fail to build)
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This change was performed with:
codespell --ignore-words-list 'requestor' -w("requestor" is part of the X11 API, and if we allow codespell to rewrite it it would fail to build)