Merge branch 'jc/sign-off'

Doc update. * jc/sign-off: SubmittingPatches: tighten wording on "sign-off" procedure

Junio C Hamano committed Jan 15, 2021 at 21:48 UTC 6a393f36d9a7066c7e48a5fd22fc5fd4e8b2bb35

No changes.