caucase.test: Make pylint happier.

Status Job ID Name Coverage
  External
passed SlapOS.Eggs.UnitTest-Master.Python2

00:12:53

passed SlapOS.Eggs.UnitTest-Master.Python3

00:15:17

passed SlapOS.Eggs.UnitTest-Master.Python2

00:14:21

passed SlapOS.Eggs.UnitTest-Master.Python3

00:15:25