exception if domain is empty subreg.set_google_mx_records('')

[cikorka]

Traceback (most recent call last):
File "", line 1, in
File "/Users/cikorka/Dev/subreg/subreg/api.py", line 737, in set_google_mx_records
records = self.get_dns_zone(domain)
File "/Users/cikorka/Dev/subreg/subreg/api.py", line 369, in get_dns_zone
response = self._request('Get_DNS_Zone', kwargs)
File "/Users/cikorka/Dev/subreg/subreg/api.py", line 772, in _request
response['error']['errormsg'],
subreg.exceptions.ApiError: Major: 501 Minor: 1005 Text: Missing or empty value for domain name