Comment 12 for bug 1554999

<root@maasx>:~# python3 -c "from provisioningserver.utils.ipaddr import get_ip_addr; from pprint import pprint; pprint(get_ip_addr())"
{'eth0': {'flags': ['BROADCAST', 'MULTICAST', 'UP', 'LOWER_UP'],
          'index': 7,
          'inet': ['10.7.0.3/16'],
          'mac': '00:16:3e:a7:a0:4c',
          'name': 'eth0',
          'parent': 'if8',
          'settings': {'group': 'default',
                       'mtu': '1500',
                       'qdisc': 'noqueue',
                       'qlen': '1000',
                       'state': 'UP'},
          'type': 'ethernet'},
 'lo': {'flags': ['LOOPBACK', 'UP', 'LOWER_UP'],
        'index': 1,
        'inet': ['127.0.0.1/8'],
        'inet6': ['::1/128'],
        'name': 'lo',
        'settings': {'group': 'default',
                     'mtu': '65536',
                     'qdisc': 'noqueue',
                     'qlen': '1',
                     'state': 'UNKNOWN'},
        'type': 'loopback'}}