In fact it isn't needed to assign it because rhost and rport are defined function at Exploit::Remote::Tcp. I know I forgot in other reviews, sorry :) Doesn't hurt defining them, just pointing isn't needed al all :)

* Functions defined in Exploit::Remote::Tcp:

```
	# Returns the target host
	#
	def rhost
		datastore['RHOST']
	end

	#
	# Returns the remote port
	#
	def rport
		datastore['RPORT']
	end

```