fix remaining luacheck issues

.luacheckrc

@@ -1,5 +1,4 @@
 unused_args = false
-allow_defined_top = true
 
 read_globals = {
 	"DIR_DELIM",
@@ -10,9 +9,21 @@ read_globals = {
 	"PseudoRandom", "ItemStack",
 	"AreaStore",
 	"default",
+	"factions",
 	table = { fields = { "copy", "getn" } }
 }
 
 globals = {
-	"minetest"
+	"minetest",
+	-- mod namespace
+	"areas",
+	-- legacy
+	"IsPlayerNodeOwner",
+	"GetNodeOwnerName",
+	"HasOwner",
+	"owner_defs"
+}
+
+files["legacy.lua"] = {
+	ignore = {"512"}
 }

chatcommands.lua

@@ -294,7 +294,7 @@ if areas.factions_available then
 			if not id then
 				return false, S("Invalid usage, see /help @1.", "area_faction_open")
 			end
-			
+
 			if not areas:isAreaOwner(id, name) then
 				return false, S("Area @1 does not exist"
 						.." or is not owned by you.", id)
@@ -386,7 +386,7 @@ minetest.register_chatcommand("area_info", {
 				area_num = area_num + 1
 			end
 		end
-		table.insert(lines, S("You have @1 areas.", area_num)) 
+		table.insert(lines, S("You have @1 areas.", area_num))
 
 		-- Area limit
 		local area_limit_line = privs.areas and