message: Update nwnx_ruby.nss to match coding style
diff: string NWNX_Ruby_Evaluate (string sCode);
  -string NWNX_Ruby_Evaluate (string sCode) {
  +string NWNX_Ruby_Evaluate (string sCode)
  +{
  NWNX_PushArgumentString ("NWNX_Ruby", "EVALUATE", sCode);
  NWNX_CallFunction ("NWNX_Ruby", "EVALUATE");
  return NWNX_GetReturnValueString ("NWNX_Ruby", "EVALUATE");
  