ENH: Test the header point for NULL before adding it to the list of files.
ENH: Test the header point for NULL before adding it to the list of files.

blowekamp/ITK,thewtex/ITK,InsightSoftwareConsortium/ITK,msmolens/ITK,hendradarwin/ITK,LucHermitte/ITK,BlueBrain/ITK,Kitware/ITK,wkjeong/ITK,CapeDrew/DITK,spinicist/ITK,CapeDrew/DCMTK-ITK,InsightSoftwareConsortium/ITK,hendradarwin/ITK,PlutoniumHeart/ITK,malaterre/ITK,cpatrick/ITK-RemoteIO,fuentesdt/InsightToolkit-dev,BlueBrain/ITK,InsightSoftwareConsortium/ITK,InsightSoftwareConsortium/ITK,cpatrick/ITK-RemoteIO,zachary-williamson/ITK,jmerkow/ITK,biotrump/ITK,biotrump/ITK,BRAINSia/ITK,cpatrick/ITK-RemoteIO,malaterre/ITK,atsnyder/ITK,rhgong/itk-with-dom,msmolens/ITK,fbudin69500/ITK,vfonov/ITK,blowekamp/ITK,GEHC-Surgery/ITK,hinerm/ITK,paulnovo/ITK,stnava/ITK,Kitware/ITK,PlutoniumHeart/ITK,msmolens/ITK,daviddoria/itkHoughTransform,spinicist/ITK,hjmjohnson/ITK,atsnyder/ITK,CapeDrew/DCMTK-ITK,daviddoria/itkHoughTransform,Kitware/ITK,atsnyder/ITK,CapeDrew/DITK,fbudin69500/ITK,GEHC-Surgery/ITK,hendradarwin/ITK,paulnovo/ITK,PlutoniumHeart/ITK,rhgong/itk-with-dom,thewtex/ITK,paulnovo/ITK,thewtex/ITK,atsnyder/ITK,CapeDrew/DCMTK-ITK,CapeDrew/DCMTK-ITK,LucasGandel/ITK,Kitware/ITK,zachary-williamson/ITK,fuentesdt/InsightToolkit-dev,biotrump/ITK,spinicist/ITK,InsightSoftwareConsortium/ITK,blowekamp/ITK,jcfr/ITK,biotrump/ITK,richardbeare/ITK,hjmjohnson/ITK,BlueBrain/ITK,zachary-williamson/ITK,InsightSoftwareConsortium/ITK,vfonov/ITK,LucHermitte/ITK,ajjl/ITK,stnava/ITK,LucasGandel/ITK,jmerkow/ITK,atsnyder/ITK,hinerm/ITK,fuentesdt/InsightToolkit-dev,stnava/ITK,LucasGandel/ITK,hinerm/ITK,LucHermitte/ITK,PlutoniumHeart/ITK,cpatrick/ITK-RemoteIO,atsnyder/ITK,zachary-williamson/ITK,jmerkow/ITK,spinicist/ITK,rhgong/itk-with-dom,wkjeong/ITK,PlutoniumHeart/ITK,zachary-williamson/ITK,CapeDrew/DCMTK-ITK,itkvideo/ITK,heimdali/ITK,LucHermitte/ITK,hendradarwin/ITK,paulnovo/ITK,blowekamp/ITK,hjmjohnson/ITK,vfonov/ITK,malaterre/ITK,fedral/ITK,itkvideo/ITK,stnava/ITK,rhgong/itk-with-dom,hinerm/ITK,GEHC-Surgery/ITK,itkvideo/ITK,fedral/ITK,eile/ITK,PlutoniumHeart/ITK,vfonov/ITK,CapeDrew/DCMTK-ITK,fedral/ITK,CapeDrew/DCMTK-ITK,PlutoniumHeart/ITK,hendradarwin/ITK,fbudin69500/ITK,wkjeong/ITK,itkvideo/ITK,fuentesdt/InsightToolkit-dev,BRAINSia/ITK,fedral/ITK,spinicist/ITK,Kitware/ITK,daviddoria/itkHoughTransform,eile/ITK,jmerkow/ITK,malaterre/ITK,richardbeare/ITK,eile/ITK,vfonov/ITK,zachary-williamson/ITK,itkvideo/ITK,rhgong/itk-with-dom,BRAINSia/ITK,jcfr/ITK,ajjl/ITK,ajjl/ITK,eile/ITK,atsnyder/ITK,vfonov/ITK,hendradarwin/ITK,BRAINSia/ITK,jcfr/ITK,daviddoria/itkHoughTransform,CapeDrew/DITK,vfonov/ITK,CapeDrew/DITK,richardbeare/ITK,blowekamp/ITK,vfonov/ITK,fuentesdt/InsightToolkit-dev,heimdali/ITK,CapeDrew/DITK,heimdali/ITK,eile/ITK,blowekamp/ITK,wkjeong/ITK,jcfr/ITK,biotrump/ITK,fedral/ITK,eile/ITK,PlutoniumHeart/ITK,rhgong/itk-with-dom,daviddoria/itkHoughTransform,msmolens/ITK,zachary-williamson/ITK,BlueBrain/ITK,daviddoria/itkHoughTransform,fedral/ITK,GEHC-Surgery/ITK,hendradarwin/ITK,jmerkow/ITK,BRAINSia/ITK,BlueBrain/ITK,cpatrick/ITK-RemoteIO,paulnovo/ITK,BRAINSia/ITK,heimdali/ITK,paulnovo/ITK,hendradarwin/ITK,jcfr/ITK,cpatrick/ITK-RemoteIO,wkjeong/ITK,fbudin69500/ITK,fedral/ITK,itkvideo/ITK,richardbeare/ITK,hinerm/ITK,blowekamp/ITK,vfonov/ITK,spinicist/ITK,richardbeare/ITK,stnava/ITK,eile/ITK,hjmjohnson/ITK,Kitware/ITK,zachary-williamson/ITK,blowekamp/ITK,CapeDrew/DITK,thewtex/ITK,jmerkow/ITK,stnava/ITK,heimdali/ITK,itkvideo/ITK,LucasGandel/ITK,malaterre/ITK,GEHC-Surgery/ITK,paulnovo/ITK,malaterre/ITK,jcfr/ITK,CapeDrew/DITK,hinerm/ITK,fuentesdt/InsightToolkit-dev,fbudin69500/ITK,GEHC-Surgery/ITK,fuentesdt/InsightToolkit-dev,paulnovo/ITK,InsightSoftwareConsortium/ITK,CapeDrew/DITK,wkjeong/ITK,msmolens/ITK,BlueBrain/ITK,LucHermitte/ITK,thewtex/ITK,CapeDrew/DITK,heimdali/ITK,ajjl/ITK,msmolens/ITK,biotrump/ITK,richardbeare/ITK,jmerkow/ITK,stnava/ITK,eile/ITK,BlueBrain/ITK,LucasGandel/ITK,fbudin69500/ITK,spinicist/ITK,daviddoria/itkHoughTransform,LucasGandel/ITK,hjmjohnson/ITK,thewtex/ITK,GEHC-Surgery/ITK,LucHermitte/ITK,LucHermitte/ITK,wkjeong/ITK,hinerm/ITK,Kitware/ITK,malaterre/ITK,zachary-williamson/ITK,hjmjohnson/ITK,atsnyder/ITK,LucasGandel/ITK,ajjl/ITK,wkjeong/ITK,rhgong/itk-with-dom,thewtex/ITK,msmolens/ITK,CapeDrew/DCMTK-ITK,fbudin69500/ITK,stnava/ITK,BRAINSia/ITK,daviddoria/itkHoughTransform,fuentesdt/InsightToolkit-dev,BlueBrain/ITK,itkvideo/ITK,stnava/ITK,jmerkow/ITK,hinerm/ITK,biotrump/ITK,ajjl/ITK,biotrump/ITK,fuentesdt/InsightToolkit-dev,spinicist/ITK,spinicist/ITK,LucasGandel/ITK,rhgong/itk-with-dom,malaterre/ITK,richardbeare/ITK,cpatrick/ITK-RemoteIO,itkvideo/ITK,fbudin69500/ITK,daviddoria/itkHoughTransform,LucHermitte/ITK,heimdali/ITK,jcfr/ITK,CapeDrew/DCMTK-ITK,fedral/ITK,cpatrick/ITK-RemoteIO,malaterre/ITK,jcfr/ITK,heimdali/ITK,msmolens/ITK,GEHC-Surgery/ITK,atsnyder/ITK,hjmjohnson/ITK,eile/ITK,ajjl/ITK,hinerm/ITK,ajjl/ITK