This series adds a few usability improvements to qemu-iotests, mostly
for Python unittest-based tests. In particular:
- the output of the unittest framework is not buffered, which makes it
easier to follow the "-d" output of the tests
- arguments can be passed to Python unittests scripts, for example
to run only a subset of the test cases (patches 1-2)
- it is possible to do "./check -- ../../../tests/qemu-iotests/055 args..."
and specify arbitrary arguments to be passed to a single test script.
This is especially useful together with the previous feature and eases
the debugging of Python tests.
Paolo
v3->v4: output of Python tests regenerated when needed