Merge branch 'nd/rev-list-all-includes-HEAD-doc'

Doc update. * nd/rev-list-all-includes-HEAD-doc: rev-list-options.txt: update --all about HEAD

Junio C Hamano committed Feb 10, 2017 at 12:52 UTC 653078bbddef3ecd454c3e36b9e43629128967db

No changes.