Jeff King [off-list ref] wrote:
Regarding attribution: I kept myself as author, because I rewrote it a
bit and figured that I would take primary responsibility for bugs in
this patch, and in the long run would be responsible for maintaining
it. But the idea and the substance of the patch are yours, and I
would be happy to list you as author if you prefer getting the credit
that way (after all, it bumps your shortlog numbers :) ).
I'm completely OK with that. I don't care much about shortlog :). It's
nice enough to see that you liked my idea :)