Git commits in Moodle 3.7.0 by Viktor

commit 898d5d05a0c3ae6795db0241bf3cb5951213d45c
Author: Viktor <viktor.khokhryakov@gmail.com>
Date:   Mon, 04 Feb 2019 16:10:25 +0800
Tag:    v3.7.0-beta

MDL-62702 core_lib: fix broken verification signature