Fix pep8 error

ovirt-guest-agent/GuestAgentLinux2.py:55:1: E302 expected 2 blank lines, found 1

Change-Id: Ib05330955224108fa30b46e11b13b0fe99fab247
Signed-off-by: Vinzenz Feenstra <vfeenstr@redhat.com>
(cherry picked from commit 84e2216c39a2f4b4fb0768d561cf4e85e1f88939)