message: Small fix for ROOT6
diff: @@ -455,6 +455,7 @@ void AliHFMultiTrials::SaveToRoot(TString fileName, TString option) const{
  fHistoRawYieldTrialBinC[ic]->Write();
  fHistoRawYieldDistBinC[ic]->Write();
  }
  + fNtupleMultiTrials->SetDirectory(outHistos);
  fNtupleMultiTrials->Write();
  outHistos->Close();
  delete outHistos;
  