tc tests: Fix compilation by adhering to and praising PEP8

The syntax for block comments is now checked by pep8,
which requires that (E265) block comment should start with '# '.

Change-Id: If1228784acd5a505d77e623d4f2ada5f00332545
Signed-off-by: Ondřej Svoboda <osvoboda@redhat.com>
Amends: I5f2d64c3dbc621f062274afb343ad56048b36180
Reviewed-on: http://gerrit.ovirt.org/34312
Reviewed-by: Sandro Bonazzola <sbonazzo@redhat.com>
Reviewed-by: Dan Kenigsberg <danken@redhat.com>