qa_crowbarsetup: Rewrite Trove error message
qa_crowbarsetup: Rewrite Trove error message

The warning for attempting to deploy trove for Cloud 9+ read a little
strangely. Reword it.

gosipyan/automation,SUSE-Cloud/automation,SUSE-Cloud/automation,aspiers/automation,aspiers/automation,aspiers/automation,SUSE-Cloud/automation,gosipyan/automation,aspiers/automation,gosipyan/automation,gosipyan/automation,SUSE-Cloud/automation