tests/functional/ppc/test_ppe42: Fix style issues reported by pylint

Pylint suggests to write some parts of the code in a slightly different
way ... thus rework the code to make the linter happy.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Glenn Miles <milesg@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20251119082636.43286-11-thuth@redhat.com>
1 file changed