Merge pull request #18545 from laryn/patch-3
authorEileen McNaughton <emcnaughton@wikimedia.org>
Mon, 21 Sep 2020 23:22:07 +0000 (11:22 +1200)
committerGitHub <noreply@github.com>
Mon, 21 Sep 2020 23:22:07 +0000 (11:22 +1200)
Check if BACKDROP_ROOT is defined already


Trivial merge