message: Fix: labeling of FBScanQAhistograms is fixed
  forgot to account for new track variable kCHARGE
diff: @@ -352,6 +352,7 @@ void AliAnalysisTaskAR::InitializeArraysForQAHistograms() {
  {"fFBTrackScanQAHistogram[kPT]", "Filterbitscan p_{T}", "p_{t}", ""},
  {"fFBTrackScanQAHistogram[kPHI]", "Filterbitscan #varphi", "#varphi", ""},
  {"fFBTrackScanQAHistogram[kETA]", "Filterbitscan #eta", "#eta", ""},
  + {"fFBTrackScanQAHistogram[kCHARGE]", "Filterbitscan Charge", "Q", ""},
  {"fFBTrackScanQAHistogram[kTPCNCLS]",
  "Filterbitscan number of TPC clusters", "", ""},
  {"fFBTrackScanQAHistogram[kITSNCLS]",
  @@ -382,8 +383,9 @@ void AliAnalysisTaskAR::InitializeArraysForQAHistograms() {
  {100., 0., 10.}, // kPT
  {360., 0., TMath::TwoPi()}, // kPHI
  {200., -2., 2.}, // kETA
  + {5., -2.5, 2.5}, // kCHARGE
  {160., 0., 160.}, // kTPCNCLS
  - {1000., 0., 1000.}, // kITSNCLS
  + {10., 0., 10.}, // kITSNCLS
  {100., 0., 10.}, // kCHI2PERNDF
  {100., -10., 10.}, // kDCAZ
  {100, -10., 10.}, // kDCAXY
  @@ -1255,6 +1257,7 @@ void AliAnalysisTaskAR::FillFBScanQAHistograms(AliAODTrack *track) {
  fFBTrackScanQAHistograms[kPT][fb]->Fill(track->Pt());
  fFBTrackScanQAHistograms[kPHI][fb]->Fill(track->Phi());
  fFBTrackScanQAHistograms[kETA][fb]->Fill(track->Eta());
  + fFBTrackScanQAHistograms[kCHARGE][fb]->Fill(track->Charge());
  fFBTrackScanQAHistograms[kTPCNCLS][fb]->Fill(track->GetTPCNcls());
  fFBTrackScanQAHistograms[kITSNCLS][fb]->Fill(track->GetITSNcls());
  fFBTrackScanQAHistograms[kCHI2PERNDF][fb]->Fill(track->Chi2perNDF());
  