Status "OK" when hostname isn't found

[tferic]

When the specified hostname (to be checked) isn't found in the list of hosts on spacewalk, the script returns "OK: for".
I guess it should actually return something like "UNKNOWN: host not found".

./check_spacewalk_currency.py -a auth~spacewalk.example.com -s spacewalk.example.com -S testserver.example.com

OK: for