packaged-staging.bbclass: protect against empty SRC_URI
packaged-staging.bbclass: protect against empty SRC_URI

scottellis/overo-oe,KDAB/OpenEmbedded-Archos,openembedded/openembedded,scottellis/overo-oe,sledz/oe,nx111/openembeded_openpli2.1_nx111,philb/pbcl-oe-2010,philb/pbcl-oe-2010,scottellis/overo-oe,demsey/openembedded,openembedded/openembedded,nx111/openembeded_openpli2.1_nx111,demsey/openenigma2,YtvwlD/od-oe,thebohemian/openembedded,libo/openembedded,trini/openembedded,nzjrs/overo-openembedded,openembedded/openembedded,bticino/openembedded,crystalfontz/openembedded,openembedded/openembedded,yyli/overo-oe,scottellis/overo-oe,JrCs/opendreambox,openpli-arm/openembedded,yyli/overo-oe,nvl1109/openembeded,anguslees/openembedded-android,openembedded/openembedded,openembedded/openembedded,sampov2/audio-openembedded,xifengchuo/openembedded,BlackPole/bp-openembedded,nvl1109/openembeded,bticino/openembedded,philb/pbcl-oe-2010,bticino/openembedded,dellysunnymtech/sakoman-oe,rascalmicro/openembedded-rascal,bticino/openembedded,trini/openembedded,openembedded/openembedded,philb/pbcl-oe-2010,sampov2/audio-openembedded,mrchapp/arago-oe-dev,Martix/Eonos,demsey/openembedded,JrCs/opendreambox,sentient-energy/emsw-oe-mirror,YtvwlD/od-oe,nzjrs/overo-openembedded,troth/oe-ts7xxx,nx111/openembeded_openpli2.1_nx111,crystalfontz/openembedded,rascalmicro/openembedded-rascal,YtvwlD/od-oe,giobauermeister/openembedded,nvl1109/openembeded,crystalfontz/openembedded,dave-billin/overo-ui-moos-auv,nlebedenco/mini2440,sledz/oe,nzjrs/overo-openembedded,buglabs/oe-buglabs,hulifox008/openembedded,scottellis/overo-oe,trini/openembedded,dave-billin/overo-ui-moos-auv,nvl1109/openembeded,libo/openembedded,JrCs/opendreambox,BlackPole/bp-openembedded,sampov2/audio-openembedded,crystalfontz/openembedded,dave-billin/overo-ui-moos-auv,buglabs/oe-buglabs,John-NY/overo-oe,JamesAng/goe,xifengchuo/openembedded,nlebedenco/mini2440,SIFTeam/openembedded,demsey/openembedded,thebohemian/openembedded,giobauermeister/openembedded,yyli/overo-oe,anguslees/openembedded-android,troth/oe-ts7xxx,demsey/openenigma2,sledz/oe,hulifox008/openembedded,demsey/openenigma2,xifengchuo/openembedded,popazerty/openembedded-cuberevo,sentient-energy/emsw-oe-mirror,rascalmicro/openembedded-rascal,dellysunnymtech/sakoman-oe,anguslees/openembedded-android,popazerty/openembedded-cuberevo,sentient-energy/emsw-oe-mirror,openembedded/openembedded,dellysunnymtech/sakoman-oe,KDAB/OpenEmbedded-Archos,philb/pbcl-oe-2010,hulifox008/openembedded,giobauermeister/openembedded,giobauermeister/openembedded,openpli-arm/openembedded,philb/pbcl-oe-2010,JamesAng/oe,troth/oe-ts7xxx,libo/openembedded,YtvwlD/od-oe,openpli-arm/openembedded,sutajiokousagi/openembedded,dellysunnymtech/sakoman-oe,yyli/overo-oe,nvl1109/openembeded,JamesAng/oe,anguslees/openembedded-android,yyli/overo-oe,thebohemian/openembedded,JamesAng/goe,JamesAng/goe,mrchapp/arago-oe-dev,sutajiokousagi/openembedded,popazerty/openembedded-cuberevo,dellysunnymtech/sakoman-oe,demsey/openenigma2,sutajiokousagi/openembedded,libo/openembedded,JamesAng/oe,BlackPole/bp-openembedded,rascalmicro/openembedded-rascal,KDAB/OpenEmbedded-Archos,nlebedenco/mini2440,dave-billin/overo-ui-moos-auv,scottellis/overo-oe,troth/oe-ts7xxx,sampov2/audio-openembedded,nx111/openembeded_openpli2.1_nx111,sampov2/audio-openembedded,xifengchuo/openembedded,xifengchuo/openembedded,dave-billin/overo-ui-moos-auv,nzjrs/overo-openembedded,Martix/Eonos,John-NY/overo-oe,openembedded/openembedded,demsey/openembedded,YtvwlD/od-oe,openpli-arm/openembedded,JamesAng/goe,libo/openembedded,sledz/oe,trini/openembedded,SIFTeam/openembedded,KDAB/OpenEmbedded-Archos,dave-billin/overo-ui-moos-auv,demsey/openenigma2,xifengchuo/openembedded,nvl1109/openembeded,rascalmicro/openembedded-rascal,JrCs/opendreambox,dellysunnymtech/sakoman-oe,SIFTeam/openembedded,buglabs/oe-buglabs,mrchapp/arago-oe-dev,buglabs/oe-buglabs,Martix/Eonos,popazerty/openembedded-cuberevo,crystalfontz/openembedded,trini/openembedded,trini/openembedded,buglabs/oe-buglabs,JrCs/opendreambox,thebohemian/openembedded,SIFTeam/openembedded,popazerty/openembedded-cuberevo,demsey/openembedded,troth/oe-ts7xxx,yyli/overo-oe,giobauermeister/openembedded,YtvwlD/od-oe,JamesAng/oe,nx111/openembeded_openpli2.1_nx111,troth/oe-ts7xxx,demsey/openenigma2,demsey/openenigma2,openembedded/openembedded,giobauermeister/openembedded,yyli/overo-oe,rascalmicro/openembedded-rascal,KDAB/OpenEmbedded-Archos,hulifox008/openembedded,mrchapp/arago-oe-dev,anguslees/openembedded-android,BlackPole/bp-openembedded,BlackPole/bp-openembedded,JrCs/opendreambox,John-NY/overo-oe,JrCs/opendreambox,JamesAng/goe,sentient-energy/emsw-oe-mirror,sutajiokousagi/openembedded,dellysunnymtech/sakoman-oe,openpli-arm/openembedded,JrCs/opendreambox,BlackPole/bp-openembedded,John-NY/overo-oe,bticino/openembedded,Martix/Eonos,popazerty/openembedded-cuberevo,nlebedenco/mini2440,libo/openembedded,rascalmicro/openembedded-rascal,openembedded/openembedded,thebohemian/openembedded,xifengchuo/openembedded,sutajiokousagi/openembedded,popazerty/openembedded-cuberevo,JamesAng/oe,JrCs/opendreambox,nx111/openembeded_openpli2.1_nx111,popazerty/openembedded-cuberevo,dellysunnymtech/sakoman-oe,giobauermeister/openembedded,hulifox008/openembedded,nlebedenco/mini2440,bticino/openembedded,SIFTeam/openembedded,John-NY/overo-oe,nx111/openembeded_openpli2.1_nx111,crystalfontz/openembedded,sledz/oe,thebohemian/openembedded,KDAB/OpenEmbedded-Archos,bticino/openembedded,sampov2/audio-openembedded,libo/openembedded,YtvwlD/od-oe,xifengchuo/openembedded,BlackPole/bp-openembedded,John-NY/overo-oe,nlebedenco/mini2440,Martix/Eonos,yyli/overo-oe,demsey/openembedded,xifengchuo/openembedded,JamesAng/goe,nlebedenco/mini2440,SIFTeam/openembedded,YtvwlD/od-oe,KDAB/OpenEmbedded-Archos,troth/oe-ts7xxx,buglabs/oe-buglabs,hulifox008/openembedded,mrchapp/arago-oe-dev,dellysunnymtech/sakoman-oe,sentient-energy/emsw-oe-mirror,sentient-energy/emsw-oe-mirror,demsey/openembedded,anguslees/openembedded-android,John-NY/overo-oe,JamesAng/oe,nzjrs/overo-openembedded,SIFTeam/openembedded,sutajiokousagi/openembedded,sledz/oe,mrchapp/arago-oe-dev,JamesAng/goe,trini/openembedded,buglabs/oe-buglabs,rascalmicro/openembedded-rascal,mrchapp/arago-oe-dev,dave-billin/overo-ui-moos-auv,nzjrs/overo-openembedded,thebohemian/openembedded,nvl1109/openembeded,nzjrs/overo-openembedded,sutajiokousagi/openembedded,scottellis/overo-oe,Martix/Eonos,anguslees/openembedded-android,sampov2/audio-openembedded,openpli-arm/openembedded,Martix/Eonos,giobauermeister/openembedded,sentient-energy/emsw-oe-mirror,buglabs/oe-buglabs,openpli-arm/openembedded,philb/pbcl-oe-2010,nx111/openembeded_openpli2.1_nx111,JamesAng/oe,hulifox008/openembedded,sledz/oe,giobauermeister/openembedded,crystalfontz/openembedded