tests/functional/ppc64/test_mac99: Fix style issues reported by pylint

Pylint complained about lines being too long here, and mac99Test not
following the usual CamelCase capitalization.

Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20251029080502.52938-1-thuth@redhat.com>
1 file changed