Git commits in Moodle 3.5.6 by Jean-Michel Vedrine

commit dd74898f6303edf002fbf15449beb085dbac5ee4
Author: Jean-Michel Vedrine <vedrine@vedrine.org>
Date:   Fri, 10 Aug 2018 00:31:36 +0800
Tag:    v3.5.6

MDL-62974 lesson: Suppress HTML font tags