Fixed compile error for incorrect data type that was used.
Fixed compile error for incorrect data type that was used.

Change-Id: I63c663aaf401bb68caa11b2933dbf9fc7dd882c3

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