Git commits in Moodle 3.10.4 by David Mudrák

commit 804f1f5ac784d1f319b906367dc0671d0348cffb
Author: David Mudrák <david@moodle.com>
Date:   Tue, 04 May 2021 19:04:31 +0800
Tag:    v3.10.4

MDL-71425 lang: Fix reworded strings in tests

commit 7f507d94d9aa4cbbe553df6b1bd0b4c1513671eb
Author: David Mudrák <david@moodle.com>
Date:   Tue, 20 Apr 2021 03:17:56 +0800
Tag:    v3.10.4

MDL-70864 files: Fix zip_packer extracting files with trailing dots

commit 9f4404e80d26607d53e23a666f5a22b29b471fe7
Author: David Mudrák <david@moodle.com>
Date:   Tue, 09 Feb 2021 22:29:11 +0800
Tag:    v3.10.4

MDL-70804 mnet: Use proper DML method to get records from the table