Git commits in Moodle 3.8.0 by Alistair Spark

commit fa3f8625e1362b0e71a573f7e64ccc2209bfae56
Author: Alistair Spark <aspark21@users.noreply.github.com>
Date:   Wed, 07 Aug 2019 06:55:10 +0800
Tag:    v3.8.0-beta

MDL-66071 user: username is required with non-internal auth method