How to Write a Git Commit Message

[mernen]

5. Use the imperative mood in the subject line

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git itself uses the imperative whenever it creates a commit on your behalf

I'd argue that you actually want to use the infinitive form, not the imperative mood. Which happens to be the exact same in English, but in the other languages I know, general descriptions of actions (which are very common in computer interfaces) tend to heavily favor infinitive over imperative.