Cleanup overshadowing in test_evacuate.py

Fixes overshadowing problem of uuid in test_evacuate identified in
the v2 to v3 evacuate port but separated into a separate changeset
to fix both the v2 and v3 versions at the same time

Change-Id: If1006d86eab7198484a6d5f82a3f3f328724f4d4
Merge "Cleanup overshadowing in test_evacuate.py"