Merge branch 'sg/git-C-empty-doc' into maint
authorJunio C Hamano <gitster@pobox.com>
Mon, 29 Jul 2019 19:38:13 +0000 (12:38 -0700)
committerJunio C Hamano <gitster@pobox.com>
Mon, 29 Jul 2019 19:38:13 +0000 (12:38 -0700)
Doc update.

* sg/git-C-empty-doc:
Document that 'git -C ""' works and doesn't change directory

Trivial merge