Correct undeclared local obj in enderman line 318

mods/ENTITIES/mobs_mc/enderman.lua

@@ -314,6 +314,7 @@ mobs:register_mob("mobs_mc:enderman", {
 		end
 		-- Check to see if people are near by enough to look at us.
 		local objs = minetest.get_objects_inside_radius(enderpos, 64)
+		local obj
 		for n = 1, #objs do
 			obj = objs[n]
 			if obj then