Otherwise, we'll fail (due to set -u) if this parameter variable isn't
passed.
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Closes: #600
Approved by: cgwalters
This is necessary for "make distcheck" on Travis-CI.
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Closes: #600
Approved by: cgwalters