message: Removed superfluous return statement in AliESD.h
  Removed the superfluous return statement in AliESD::GetDiamondCovXY() which produces a warning with gcc 6.2, see AliPhysics! issue 2193
diff: @@ -158,7 +158,7 @@ public:
  Float_t GetSigma2DiamondX() const {return fDiamondCovXY[0];}
  Float_t GetSigma2DiamondY() const {return fDiamondCovXY[2];}
  void GetDiamondCovXY(Float_t cov[3]) const {
  - for(Int_t i=0;i<3;i++) cov[i]=fDiamondCovXY[i]; return;
  + for(Int_t i=0;i<3;i++) cov[i]=fDiamondCovXY[i];
  }
  Int_t GetEventNumberInFile() const {return fEventNumberInFile;}
  