BUG: Fix potential fault when PrintSelf tries to print NULL array
BUG: Fix potential fault when PrintSelf tries to print NULL array

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