Merge branch 'jt/send-email-validate-hook'
authorJunio C Hamano <gitster@pobox.com>
Tue, 30 May 2017 02:16:43 +0000 (11:16 +0900)
committerJunio C Hamano <gitster@pobox.com>
Tue, 30 May 2017 02:16:43 +0000 (11:16 +0900)
"git send-email" learned to run sendemail-validate hook to inspect
and reject a message before sending it out.

* jt/send-email-validate-hook:
send-email: support validate hook

Trivial merge