fix typo

Vanessa Ezekowitz

2013-10-26 4a35d5dd98c8c08dd79cd0d0789b902fd4470edf

 technic/machines/register/cables.lua

@@ -35,6 +35,12 @@
            type = "fixed",
            fixed = technic.gen_cable_nodebox(x1, y1, z1, x2, y2, z2, size)
         },
         on_construct = function()
            technic.networks = {}
         end,
         on_destruct = function()
            technic.networks = {}
         end,
         after_place_node = function(pos)
            local node = minetest.get_node(pos)
            technic.update_cables(pos, technic.get_cable_tier(node.name))