COMP: fix compiler warning
COMP: fix compiler warning

naucoin/VTKSlicerWidgets,berendkleinhaneveld/VTK,jeffbaumes/jeffbaumes-vtk,msmolens/VTK,cjh1/VTK,ashray/VTK-EVM,sankhesh/VTK,naucoin/VTKSlicerWidgets,collects/VTK,jmerkow/VTK,msmolens/VTK,hendradarwin/VTK,johnkit/vtk-dev,msmolens/VTK,Wuteyan/VTK,ashray/VTK-EVM,arnaudgelas/VTK,johnkit/vtk-dev,demarle/VTK,ashray/VTK-EVM,gram526/VTK,cjh1/VTK,arnaudgelas/VTK,spthaolt/VTK,sankhesh/VTK,ashray/VTK-EVM,SimVascular/VTK,jmerkow/VTK,mspark93/VTK,SimVascular/VTK,mspark93/VTK,msmolens/VTK,johnkit/vtk-dev,mspark93/VTK,ashray/VTK-EVM,sumedhasingla/VTK,mspark93/VTK,candy7393/VTK,gram526/VTK,spthaolt/VTK,keithroe/vtkoptix,Wuteyan/VTK,msmolens/VTK,keithroe/vtkoptix,sumedhasingla/VTK,jeffbaumes/jeffbaumes-vtk,msmolens/VTK,berendkleinhaneveld/VTK,berendkleinhaneveld/VTK,keithroe/vtkoptix,daviddoria/PointGraphsPhase1,Wuteyan/VTK,gram526/VTK,demarle/VTK,jeffbaumes/jeffbaumes-vtk,berendkleinhaneveld/VTK,msmolens/VTK,gram526/VTK,sumedhasingla/VTK,spthaolt/VTK,demarle/VTK,demarle/VTK,collects/VTK,johnkit/vtk-dev,biddisco/VTK,jmerkow/VTK,jmerkow/VTK,candy7393/VTK,collects/VTK,candy7393/VTK,Wuteyan/VTK,biddisco/VTK,Wuteyan/VTK,mspark93/VTK,arnaudgelas/VTK,johnkit/vtk-dev,naucoin/VTKSlicerWidgets,cjh1/VTK,msmolens/VTK,collects/VTK,demarle/VTK,demarle/VTK,ashray/VTK-EVM,hendradarwin/VTK,Wuteyan/VTK,spthaolt/VTK,demarle/VTK,biddisco/VTK,gram526/VTK,naucoin/VTKSlicerWidgets,arnaudgelas/VTK,daviddoria/PointGraphsPhase1,spthaolt/VTK,keithroe/vtkoptix,SimVascular/VTK,cjh1/VTK,jmerkow/VTK,aashish24/VTK-old,arnaudgelas/VTK,sumedhasingla/VTK,hendradarwin/VTK,cjh1/VTK,daviddoria/PointGraphsPhase1,hendradarwin/VTK,sumedhasingla/VTK,daviddoria/PointGraphsPhase1,spthaolt/VTK,biddisco/VTK,SimVascular/VTK,biddisco/VTK,SimVascular/VTK,candy7393/VTK,SimVascular/VTK,jeffbaumes/jeffbaumes-vtk,sankhesh/VTK,sankhesh/VTK,ashray/VTK-EVM,collects/VTK,demarle/VTK,arnaudgelas/VTK,aashish24/VTK-old,hendradarwin/VTK,berendkleinhaneveld/VTK,mspark93/VTK,jmerkow/VTK,sankhesh/VTK,sankhesh/VTK,biddisco/VTK,mspark93/VTK,sankhesh/VTK,hendradarwin/VTK,johnkit/vtk-dev,biddisco/VTK,ashray/VTK-EVM,aashish24/VTK-old,jmerkow/VTK,keithroe/vtkoptix,candy7393/VTK,sumedhasingla/VTK,candy7393/VTK,daviddoria/PointGraphsPhase1,jeffbaumes/jeffbaumes-vtk,naucoin/VTKSlicerWidgets,mspark93/VTK,aashish24/VTK-old,hendradarwin/VTK,keithroe/vtkoptix,Wuteyan/VTK,gram526/VTK,SimVascular/VTK,daviddoria/PointGraphsPhase1,spthaolt/VTK,cjh1/VTK,sumedhasingla/VTK,keithroe/vtkoptix,aashish24/VTK-old,collects/VTK,berendkleinhaneveld/VTK,johnkit/vtk-dev,SimVascular/VTK,naucoin/VTKSlicerWidgets,gram526/VTK,candy7393/VTK,keithroe/vtkoptix,sumedhasingla/VTK,jmerkow/VTK,sankhesh/VTK,gram526/VTK,berendkleinhaneveld/VTK,jeffbaumes/jeffbaumes-vtk,candy7393/VTK,aashish24/VTK-old