basic-test: commit with a non-empty subject
basic-test: commit with a non-empty subject

[smcv: split out from a larger commit, part of PR #231; add commit message]
Signed-off-by: Simon McVittie <smcv@debian.org>

Closes: #232
Approved by: cgwalters

gatispaeglis/ostree,gatispaeglis/ostree,GNOME/ostree,GNOME/ostree,gatispaeglis/ostree,gatispaeglis/ostree,GNOME/ostree,gatispaeglis/ostree,GNOME/ostree,GNOME/ostree,gatispaeglis/ostree