As a Mac user, you should tell them how to do a better job.
https://en.wikipedia.org/wiki/Narcissism_of_small_difference...
Me, I am pragmatic. I have set this in my local config and I've added it to my repos to be certain. Because it's ten bytes.
I assume that’s why some open source maintainers don’t bother either - if you haven’t even looked at your diff before submitting then why should they?