Update torsocks.8, added clarification that hostnames are not supported, just...

Update torsocks.8, added clarification that hostnames are not supported, just IP address, when user tries to specify a hostname, it fails with additional ramifications. "not suported here" instead of "not supported" because from my tests, on the torrc config (oposite / listening side) that address seems to support host names (SOCKSPort my.tor.proxy:9050)