message: GFWWeights: suppressing output when merging MC and data weights
diff: @@ -275,7 +275,7 @@ void AliGFWWeights::ReadAndMerge(TString filelinks, TString listName, Bool_t add
  };
  void AliGFWWeights::AddArray(TObjArray *targ, TObjArray *sour) {
  if(!sour) {
  - printf("Source array does not exist!\n");
  + // printf("Source array does not exist!\n");
  return;
  };
  for(Int_t i=0;i<sour->GetEntries();i++) {
  