Fix multiple network interfaces for VMs

Only one network interface was shown in the tags.

cloudcontrol/node/hypervisor/domains/__init__.py

@@ -82,11 +82,11 @@ class VirtualMachine(object):
             for t in (
                 Tag('nic%s_mac' % i, nic.mac, 10),
                 Tag('nic%s_source' % i, nic.source, 10),
-                Tag('nic%s_model' %i, nic.model, 10),
+                Tag('nic%s_model' % i, nic.model, 10),
             ):
                 self.tags[t.name] = t
 
-        logger.debug('Virtual Machine tags: %s', self.tags)
+            i += 1
 
         #: keep record of CPU stats (libev timestamp, cpu time)
         self.cpu_stats = (hypervisor.handler.main.evloop.now(), dom.info()[4])