Fix file list script listing '*' for empty directories
Fix file list script listing '*' for empty directories

I don't know what causes bash to list .* sometimes, and * other times,
but it can produce either for empty directories. This doesn't appear to
actually cause any bugs, but maybe there's something subtly wrong, so
we should fix it.

Bug: chromium:1076580
Change-Id: I2f200dc4e201616610dd4fce33b00410cbb76482
Reviewed-on: https://chromium-review.googlesource.com/c/catapult/+/2194378
Reviewed-by: Ben Pastene <e214258550f76fa23ac7c1d953424f3f468f5c6b@chromium.org>
Commit-Queue: Michael Thiessen <592b72e1cff7dc8c6fa9a145a6d891fe715588c7@chromium.org>

catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult