Simplify music player interface

Zefram

2014-08-14 6cc471e986c694298716c257528c653395bd757d

 technic/machines/supply_converter.lua

@@ -35,7 +35,12 @@
         ..input * remain.." "..to..")")
   else
      meta:set_string("infotext", S("%s Has Bad Cabling"):format(machine_name))
      meta:set_int(to.."_EU_supply", 0)
      if to then
         meta:set_int(to.."_EU_supply", 0)
      end
      if from then
         meta:set_int(from.."_EU_demand", 0)
      end
      return
   end