It uses bash specific features, so it should not claim /bin/sh in
shebang. We also want to use `set -e` to catch possible errors instead
of claiming success every time.
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>
Previous test data was insufficient for proper testing.
Test compose runs and depsolving tests require precisely
set NVRs, dependencies, sub-packages, etc.
Using rpmfluff for these would be an overkill, it's better
to create RPMs directly from specs.