Merge branch 'jc/clarify-revision-range'

Doc update. * jc/clarify-revision-range: revisions(7): clarify that most commands take a single revision range

Junio C Hamano committed Jun 10, 2021 at 12:04 UTC b009fd41e8d66e6a1fb4e59f95ea48a18fc0194c

No changes.