This patch makes the feedgen flake8 compatible, fixing some minor issues
along the way. Most noticeable, this switches from tabs to spaces.
Signed-off-by: Lars Kiesow <lkiesow@uos.de>
This fixes some small issues with the unit tests and adding a test case
to the Makefile so that all tests can easily be invoked by running:
make test
Signed-off-by: Lars Kiesow <lkiesow@uos.de>