unit-test.py: Format with autopep8
unit-test.py: Format with autopep8

Signed-off-by: Lei YU <fc52a17c06c071ee7cd115c972235443e2107013@bytedance.com>
Change-Id: If2af9b695ec6325aebf7fafb9f5ef17e43a52c40

openbmc/openbmc-build-scripts,openbmc/openbmc-build-scripts