Git commits in Moodle 3.5.4 by Dan Marsden

commit 6dae57a10277a2456a5b64244fd61087e74adb76
Author: Dan Marsden <dan@danmarsden.com>
Date:   Mon, 12 Nov 2018 04:19:37 +0800
Tag:    v3.5.4

MDL-63953 mod_scorm: Use correct value for first attempt.