Developer credits
Git commits in Moodle 2.7.20 by Andrew Nicols
commit 6cfcfff1189c3ce14eebf594d58ce9a0c2a85f5f Author: Andrew Nicols <andrew@nicols.co.uk> Date: Wed, 03 May 2017 08:32:04 +0800 Tag: v2.7.20 MDL-58746 core: Simplify environment check
commit 7a142305cffde08743de8f7c5a8ace420f735b58 Author: Andrew Nicols <andrew@nicols.co.uk> Date: Mon, 01 May 2017 08:51:37 +0800 Tag: v2.7.20 MDL-58746 core: Add environment check for finfo