BUG: Fix valgrind error. If working directory is not set do not do chdir
BUG: Fix valgrind error. If working directory is not set do not do chdir

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