Git commits in Moodle 3.7.6 by Helen Foster

commit 3f19c3cfb4a250d29e7249a78a57bf1e1f1662c2
Author: Helen Foster <helen@moodle.org>
Date:   Tue, 28 Apr 2020 21:52:21 +0800
Tag:    v3.7.6

MDL-68434 lang: Import fixed English strings (en_fix)