Author: Andrew Nicols
MDL-58746 core: Simplify environment check
http://git.moodle.org/gw?p=moodle.git;a=commit;h=605cba073c9a0ddf4235e05bade1ff5a5a7755ca
http://github.com/moodle/moodle/commit/605cba073c9a0ddf4235e05bade1ff5a5a7755ca
- 3.1 en [finforequired,core_admin]