Slight tweak to help parse extremely minimal registrar information (i.e. gocl.io).

This PR fixes the parsing of extremely minimal registrar information, like that given for gocl.io:

```
Domain : gocl.io
Status : Live
Expiry : 2014-10-04

NS 1   : ns1.p04.dynect.net
NS 2   : ns2.p04.dynect.net
NS 3   : ns3.p04.dynect.net
NS 4   : ns4.p04.dynect.net
```