nit: pep8 fix
nit: pep8 fix

Leftover from Simone's patch

Change-Id: I9865a5ee662bc453fb7ab19cbf509911961ed18f
Signed-off-by: Sandro Bonazzola <fcb014d63786651910af5db2ecc5316c668188ef@redhat.com>

oVirt/ovirt-image-uploader,oVirt/ovirt-image-uploader,oVirt/ovirt-image-uploader