Developer credits
Git commits in Moodle 3.2.x by Marcus Green
commit a9ba1423263667a96a5ecfdfd9650cdc221bb0c4 Author: Marcus Green <marcus@moodle.com> Date: Wed, 07 Jun 2017 21:53:53 +0800 Tag: v3.2.4 MDL-58248 theme_boost: label/span for sidepanel expand button