Git commits in Moodle 3.5.18 by Eloy Lafuente (stronk7)

commit ed00c49c6f8ab339f13c12a755865eb609f2cb14
Author: Eloy Lafuente (stronk7) <stronk7@moodle.org>
Date:   Fri, 07 May 2021 22:54:38 +0800
Tag:    v3.5.18

weekly release 3.5.17+


commit 01403722a8349d105f5b8775972c2297a585bd2e
Author: Eloy Lafuente (stronk7) <stronk7@moodle.org>
Date:   Sun, 25 Apr 2021 03:38:54 +0800
Tag:    v3.5.18

MDL-71420 environment: Lower sodium requirement to recommended