Initial import/fork of git from commit b2826b52eb7caff9f4ed6e85ec45e338bf02ad09.

This forks as of https://github.com/git/git/commit/b2826b52eb7caff9f4ed6e85ec45e338bf02ad09 .

I didn't include the github and gitlab file to avoid unwanted/unknown Github actions behavior (and Gitlab equivalent).