Some random clean ups and fixes

api/network.lua

@@ -114,6 +114,7 @@ end
 -- \param (optional) omit Vector
 -- \returns table with network map
 function industrialtest.api.createNetworkMap(pos,addCables,omit)
+	local map={}
 	local connections=industrialtest.api.getConnections(pos,"i")
 	if #connections==0 then
 		return map
@@ -121,7 +122,6 @@ function industrialtest.api.createNetworkMap(pos,addCables,omit)
 
 	local sourceMeta=minetest.get_meta(pos)
 	local workers={}
-	local map={}
 	local sides={
 		["-1,0,0"]=1,
 		["1,0,0"]=2,