Git commits in Moodle 3.5.4 by Helen Foster

commit ed72175e45573d7a739ef40f15d5bd70574b6f11
Author: Helen Foster <helen@moodle.org>
Date:   Tue, 08 Jan 2019 03:21:09 +0800
Tag:    v3.5.4

MDL-64509 lang: Import fixed English strings (en_fix)

commit a6a0cc37edfb7faa11d021d835e8be0af9e15fa3
Author: Helen Foster <helen@moodle.org>
Date:   Fri, 23 Nov 2018 21:46:51 +0800
Tag:    v3.5.4

MDL-64186 lang: Import fixed English strings (en_fix)

commit cac9d8d66532c6a5f6e950e0aa7abadee39e1e7f
Author: Helen Foster <helen@moodle.org>
Date:   Mon, 19 Nov 2018 18:58:32 +0800
Tag:    v3.5.4

MDL-63976 lang: Merge English strings from the en_fix language pack