fix grammar

[lpedromachado]

Pull Request check-list

Please make sure to review and check all of these items:

• Does npm run test or npm run test-DIALECT pass with this change (including linting)?
• Does the description below contain a link to an existing issue (Closes #[issue]) or a description of the issue you are solving?
• Have you added new tests to prevent regressions?
• Is a documentation update included (if this change modifies existing APIs, or introduces new ones)?
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Description of change

[codecov]

Codecov Report

Merging #10981 into master will not change coverage.
The diff coverage is 0%.

@@           Coverage Diff           @@
##           master   #10981   +/-   ##
=======================================
  Coverage   96.35%   96.35%           
=======================================
  Files          94       94           
  Lines        9008     9008           
=======================================
  Hits         8680     8680           
  Misses        328      328

Impacted Files	Coverage Δ
lib/model.js	96.68% <0%> (ø)	⬆️

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