fixed incorrect string syntax

[revolter]

No description provided.

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[ghost]

LGTM. Many thanks.

[facebook-github-bot]

@revolter updated the pull request.

[revolter]

@nlutsenko, What does the GH Review: review-needed label mean? Should I do something or I can safely delete the branch and move on?

[nlutsenko]

@revolter, please ignore it, I am sorry for the noise here.
Our GitHub bot had a massive hiccup today and spammed this repo with useless changes.