Fixed typo in wait-for test

[keiya01]

What:

I fixed typo in wait-for test.

Why:

How:

Checklist:

• Documentation added to the
  docs site
• Tests
• Typescript definitions updated
• Ready to be merged
  

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[codecov]

Codecov Report

Merging #688 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master      #688   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           24        24           
  Lines          603       603           
  Branches       151       151           
=========================================
  Hits           603       603           

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[kentcdodds]

Thanks!

[kentcdodds]

@all-contributors please add @keiya01 for docs

[allcontributors]

@kentcdodds

I've put up a pull request to add @keiya01! 🎉

[kentcdodds]

🎉 This PR is included in version 7.20.1 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀