As well as being shorter, this prevents connecting using a different
address family (e.g., IPv6 rather than IPv4) compared to doing this:
http.get(host.targetname, port.number)
Patch by John Bond.
http://seclists.org/nmap-dev/2012/q2/637
This is the default and can be omitted. Seeing as the value of this
argument was "hardmatched" in 100% of cases, we're better off pretending
the parameter doesn't exist.