Git commits in Moodle 3.8.3 by Farhan Karmali

commit 98ae29ae24e717dc22a7c4fbc2f737aca969188e
Author: Farhan Karmali <farhan6318@gmail.com>
Date:   Mon, 24 Feb 2020 16:17:14 +0800
Tag:    v3.8.3

MDL-67024 Lib: Check if user->mnethostid is set before using it