Git commits in Moodle 3.7.3 by Helen Foster

commit e8014f4833447e1a413f5535e30be53466b077af
Author: Helen Foster <helen@moodle.org>
Date:   Fri, 01 Nov 2019 18:22:19 +0800
Tag:    v3.7.3

MDL-66990 lang: Import fixed English strings (en_fix)