Updated openstack/openstack
Project: openstack/heat  3b0aa2e9121ab6d82526688d164e0799028844c7
null
Do not use python built-ins as variable names

`property' and `exit' in python are built-in classes, we should not
use them as variable name.

Change-Id: If02d6ac2bd3bd4f1d4bb3e5a2589421e12a4b8e6