Git commits in Moodle 3.5.5 by Charles Fulton

commit 2f9592c57a97c39096cefb521058dc84eef2b3ca
Author: Charles Fulton <fultonc@lafayette.edu>
Date:   Sun, 13 Jan 2019 04:16:39 +0800
Tag:    v3.5.5

MDL-64561 install: show help text before database check