Fixed clang -Wloop-analysis warning
Fixed clang -Wloop-analysis warning

warning: variable 'i' is incremented both in the loop header and in the loop body [-Wloop-analysis]

The loop is indeed suspect, likely incrementing i too much.

Change-Id: I853aaac44ebf01ae734d8bd3369269ea58d571b7

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