Git commits in Moodle 3.8.x by Willian Mano

commit 7a27c90102f8714f90d606c75f5182648befc36c
Author: Willian Mano <willianmanoaraujo@gmail.com>
Date:   Fri, 25 Oct 2019 00:43:27 +0800
Tag:    v3.8.0-beta

MDL-62485 enrol: Success message after enroll/unenroll user in a course