message: fix for compilation on mac yosemite
diff: @@ -302,7 +302,8 @@ AliAnalysisTaskDG::AliAnalysisTaskDG(const char *name)
  , fMCTracks("TLorentzVector", 2)
  , fTrackCuts(nullptr)
  {
  - std::fill_n(fHist, kNHist, nullptr);
  + const Int_t nHist = kNHist;
  + std::fill_n(fHist, nHist, nullptr);
  DefineOutput(1, TList::Class());
  DefineOutput(2, TTree::Class());
  