Git commits in Moodle 3.9.4 by Jun Pataleta

commit 7de4119fe24b885dcebd66eb095046a9c7c2a7ba
Author: Jun Pataleta <jun@moodle.com>
Date:   Fri, 08 Jan 2021 12:14:52 +0800
Tag:    v3.9.4

weekly release 3.9.3+

commit 0a43bdcc6c0295511947366ebc11a0d647bc004c
Author: Jun Pataleta <jun@moodle.com>
Date:   Tue, 24 Nov 2020 01:02:50 +0800
Tag:    v3.9.4

MDL-69422 core: Convert required and help button container to div

commit a6ab91786f8feb13dde9d1a78080e984e5205131
Author: Jun Pataleta <jun@moodle.com>
Date:   Mon, 23 Nov 2020 21:34:49 +0800
Tag:    v3.9.4

MDL-69422 mod_data: Export form accessibility fixes