prosody: Allow ports to be specified as just numbers

prosody

@@ -123,7 +123,7 @@ end
 -- start listening on sockets
 local function do_ports(option, listener, default, conntype)
 	local ports = config.get("*", "core", option) or default;
-	--if type(ports) == "number" then ports = {ports} end;
+	if type(ports) == "number" then ports = {ports} end;
 
 	if type(ports) ~= "table" then
 		log("error", "core."..option.." is not a table");