Sync with maint
authorJunio C Hamano <gitster@pobox.com>
Thu, 1 Aug 2019 16:00:46 +0000 (09:00 -0700)
committerJunio C Hamano <gitster@pobox.com>
Thu, 1 Aug 2019 16:00:46 +0000 (09:00 -0700)
* maint:
RelNotes/2.21.1: typofix

Trivial merge