maas-enlist prints "successfully enlisted" even when enlistment fails.

[Raphaël Badin]

This is an example maas-enlist's output:

=== Wed, 16 Apr 2014 00:27:22 +0000: successfully enlisted to 'http://91.189.94.35/MAAS/api/1.0/nodes/' without hostname
{"mac_addresses": ["One or more MAC addresses is invalid."]}=============================================

Note that it says "successfully enlisted" even though enlistment failed.