fix: .cn
fix: .cn

```
# whois google.cn
[Querying whois.cnnic.cn]
[whois.cnnic.cn]
Domain Name: google.cn
ROID: 20030311s10001s00033735-cn
Domain Status: clientDeleteProhibited
Domain Status: serverDeleteProhibited
Domain Status: clientUpdateProhibited
Domain Status: serverUpdateProhibited
Domain Status: clientTransferProhibited
Domain Status: serverTransferProhibited
Registrant ID: mark-135742
Registrant: Google Inc.
Registrant Contact Email: dns-admin@google.com
Sponsoring Registrar: MarkMonitor Inc.
Name Server: ns1.google.com
Name Server: ns2.google.com
Name Server: ns3.google.com
Name Server: ns4.google.com
Registration Time: 2003-03-17 12:20:05
Expiration Time: 2019-03-17 12:48:36
DNSSEC: unsigned
```
shift/domain_exporter