message: fix: array range to get 0 to -1 elements
diff: @@ -64,7 +64,7 @@ $emit_non_port_params($params_init_cpp)
  $emit_port_params([ $param_portNum ] + $port_params[instance])
  )
  {
  - #if $return_type[:4] == "void":
  + #if $return_type[:-1] == "void":
  // TODO
  #else:
  // TODO return
  