Fix a typo in a variable name

[kurtmckee]

Related Issue(s):

• N/A

Proposed Changes:

1. Fix typo in variable name: exisiting -> existing

PR Checklist:

• I have added my changes to the CHANGELOG or a CHANGELOG entry is not required.

[kurtmckee]

@philvarner Something happened with my original commit, 0c7ed5f, which broke my commit signature and now marks the modified commit as "Unverified". The timeline in this PR suggests that this was a manual change that happened a few minutes before the PR was merged.

My account has vigilant mode enabled and these types of changes will result in a more uncertain commit history in the GitHub interface. Could you let me know what happened here?

[philvarner]

I think I did an "Update with rebase" from the GH UI.

[kurtmckee]

Ah, makes sense. If you encounter merge conflicts on PR's in the future, please give me an opportunity to fix that so the commit signatures remain intact. Thanks! 😀

[philvarner]

Will do. I'm going to look into vigilant mode, also.

[kurtmckee]

Nice! I started signing commits and tags six months ago and have tried to watch how that shows up in the GH interface. I only enabled vigilant mode last week and have found a few interesting corner cases.

What happened in this PR is new to me, but late last week I discovered that when I leave code suggestions in PR reviews -- and when the PR author commits those suggestions directly from the PR comment -- it shows up as "Partially verified" because I never actually committed anything! Instead, it's attributed to me by way of "Co-authored by" (example).

Just wanted to share my experience so far. 👍