GitLab

Previously if you tried to read a HostName in a config file that
looked like this:

```
Host github
    HostName github.com        # This is the host for code review
```

DefaultUserSettings.Get("HostName") would return "github.com        ",
which I think is unintuitive and unexpected.

This behavior is fixed in v1.2 which would return "github.com" in the
above example.