Should not have error message with empty inputs.
Should not have error message with empty inputs.

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