Fix typo

[vjik]

Q	A
Is bugfix?	✔️
New feature?	❌
Breaks BC?	❌
Fixed issues	comma-separated list of tickets # fixed by the PR, if any

[codecov[bot]]

Codecov Report

Base: 99.57% // Head: 99.57% // No change to project coverage :thumbsup:

Coverage data is based on head (64514c1) compared to base (8d7e227). Patch has no changes to coverable lines.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #128 +/- ## ========================================= Coverage 99.57% 99.57% Complexity 267 267 ========================================= Files 22 22 Lines 699 699 ========================================= Hits 696 696 Misses 3 3 ``` | [Impacted Files](https://codecov.io/gh/yiisoft/config/pull/128?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=yiisoft) | Coverage Δ | | |---|---|---| | [src/Modifier/ReverseMerge.php](https://codecov.io/gh/yiisoft/config/pull/128?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=yiisoft#diff-c3JjL01vZGlmaWVyL1JldmVyc2VNZXJnZS5waHA=) | `100.00% <ø> (ø)` | | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=yiisoft). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=yiisoft)

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[samdark]

👍