message: set mcevent pointer safely
diff: @@ -927,7 +927,7 @@ void AliAnalysisTaskEmcalVsPhos::FillClusterHistograms()
  AliVCaloCells* phosCaloCells = InputEvent()->GetPHOSCells();
  // If MC, get the MC event
  - const AliMCEvent* mcevent;
  + const AliMCEvent* mcevent = nullptr;
  if (fGeneratorLevel) {
  mcevent = MCEvent();
  }
  @@ -1176,7 +1176,7 @@ void AliAnalysisTaskEmcalVsPhos::FillJetPerformanceHistograms()
  TString histname;
  // If MC, get the MC event
  - const AliMCEvent* mcevent;
  + const AliMCEvent* mcevent = nullptr;
  if (fGeneratorLevel) {
  mcevent = MCEvent();
  }
  