message: Fix for ROOT6 - fitting is more delicate
diff: @@ -323,6 +323,10 @@ TGraphErrors * AliTPCcalibBase::FitSlices(TH2* hist, Int_t minEntries, Int_t nma
  Double_t binWidth = projectionHist->GetXaxis()->GetBinWidth(1);
  if (rms>0){
  // cut on +- 4 RMS
  + funcGaus.SetRange(xMin,xMax);
  + funcGaus.SetParameters(projectionHist->GetMaximum(),
  + projectionHist->GetMean(),
  + projectionHist->GetRMS());
  projectionHist->Fit(&funcGaus,"QN","",xMin, xMax);
  Double_t chi2 = funcGaus.GetChisquare();
  //
  