Comment 4 for bug 1855023

Reviewed: https://reviews.mahara.org/10658
Committed: https://git.mahara.org/mahara/mahara/commit/a5012e5cdc22dc91770616e68f1b089157579b41
Submitter: Cecilia Vela Gurovic (<email address hidden>)
Branch: master

commit a5012e5cdc22dc91770616e68f1b089157579b41
Author: Lisa Seeto <email address hidden>
Date: Mon Dec 9 11:28:09 2019 +1300

Bug 1855023: Warning produced when adding/ editing an image gallery block

- changed for loop in get_get_javascript_javascript func to continue
when encountering empty filename vars.

behatnotneeded

Change-Id: I5b65c4beee4465d80911aa3fe08590a358570141
Signed-off-by: Lisa Seeto <email address hidden>