CBQE-0: fix py-xdcrupgrade.conf

Change-Id: Ia68d178cd606ebe0e7b1baa44cadea230df9e1de
Reviewed-on: http://review.couchbase.org/30325
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>
Tested-by: Andrei Baranouski <andrei.baranouski@gmail.com>