Closed Issue: AlternativeName.Format(bool multiline) strips trailing character [71]

Hi Camelot,

I just tried your last example. Any idea why the result would be truncated? I am missing the last caracter of every domain name returned:

This is what I get:

```
DNS Name=test.example.co, DNS Name=test2.example.co
```

But I would expect:

```
DNS Name=test.example.com, DNS Name=test2.example.com
```

Thanks!
Comments: fixed in v3.1