fixed rscan

source/rscan.src

@@ -4,7 +4,7 @@ if params.len < 1 or params[0] == "-h" or params[0] == "--help" then
 end if
 mx = include_lib("/lib/metaxploit.so")
 ip = params[0]
-if params.len == 1 or port == 0 then
+if params.len == 1 then
 	sess = mx.net_use(ip)
 else
 	port = params[1].to_int