message: Fix incorrect array index used in disassembly
diff: @@ -943,7 +943,7 @@ void Program::MakeDisassemblyString()
  m_Disassembly += argToString(inst.args[1], true);
  for(size_t a = 2; a < inst.args.size(); a++)
  {
  - m_Disassembly += ", " + ToStr(inst.args[2].idx);
  + m_Disassembly += ", " + ToStr(inst.args[a].idx);
  }
  break;
  }
  