Fix bug in 6fb8ded76f2 to fix compiler warning
Fix bug in 6fb8ded76f2 to fix compiler warning

Change-Id: I7240fb19cd3ff6efb39c3db79dd8c72adbd4010a

aashish24/VTK-old,jmerkow/VTK,candy7393/VTK,biddisco/VTK,johnkit/vtk-dev,jmerkow/VTK,sumedhasingla/VTK,biddisco/VTK,aashish24/VTK-old,aashish24/VTK-old,hendradarwin/VTK,gram526/VTK,gram526/VTK,biddisco/VTK,gram526/VTK,sankhesh/VTK,ashray/VTK-EVM,mspark93/VTK,demarle/VTK,mspark93/VTK,msmolens/VTK,keithroe/vtkoptix,ashray/VTK-EVM,gram526/VTK,gram526/VTK,biddisco/VTK,SimVascular/VTK,collects/VTK,gram526/VTK,johnkit/vtk-dev,hendradarwin/VTK,mspark93/VTK,msmolens/VTK,sumedhasingla/VTK,sankhesh/VTK,jmerkow/VTK,demarle/VTK,keithroe/vtkoptix,demarle/VTK,johnkit/vtk-dev,ashray/VTK-EVM,aashish24/VTK-old,msmolens/VTK,jmerkow/VTK,jmerkow/VTK,berendkleinhaneveld/VTK,mspark93/VTK,keithroe/vtkoptix,sumedhasingla/VTK,berendkleinhaneveld/VTK,collects/VTK,keithroe/vtkoptix,candy7393/VTK,candy7393/VTK,berendkleinhaneveld/VTK,msmolens/VTK,aashish24/VTK-old,candy7393/VTK,hendradarwin/VTK,gram526/VTK,demarle/VTK,sankhesh/VTK,SimVascular/VTK,jmerkow/VTK,ashray/VTK-EVM,ashray/VTK-EVM,sumedhasingla/VTK,sankhesh/VTK,keithroe/vtkoptix,demarle/VTK,biddisco/VTK,sankhesh/VTK,mspark93/VTK,sankhesh/VTK,demarle/VTK,collects/VTK,jmerkow/VTK,collects/VTK,aashish24/VTK-old,SimVascular/VTK,gram526/VTK,msmolens/VTK,keithroe/vtkoptix,ashray/VTK-EVM,demarle/VTK,biddisco/VTK,sankhesh/VTK,SimVascular/VTK,ashray/VTK-EVM,keithroe/vtkoptix,collects/VTK,hendradarwin/VTK,SimVascular/VTK,berendkleinhaneveld/VTK,msmolens/VTK,SimVascular/VTK,hendradarwin/VTK,candy7393/VTK,biddisco/VTK,hendradarwin/VTK,mspark93/VTK,candy7393/VTK,keithroe/vtkoptix,johnkit/vtk-dev,johnkit/vtk-dev,berendkleinhaneveld/VTK,jmerkow/VTK,sankhesh/VTK,sumedhasingla/VTK,mspark93/VTK,SimVascular/VTK,msmolens/VTK,johnkit/vtk-dev,berendkleinhaneveld/VTK,johnkit/vtk-dev,sumedhasingla/VTK,sumedhasingla/VTK,candy7393/VTK,hendradarwin/VTK,ashray/VTK-EVM,collects/VTK,candy7393/VTK,berendkleinhaneveld/VTK,demarle/VTK,SimVascular/VTK,msmolens/VTK,mspark93/VTK,sumedhasingla/VTK