update-debsources: add option -u/--dburi to override DB URI
update-debsources: add option -u/--dburi to override DB URI

nonas/debian-qa,Debian/debsources,Debian/debsources,zacchiro/debsources,devoxel/debsources,matthieucan/debsources,clemux/debsources,sophiejjj/debsources,sophiejjj/debsources,sophiejjj/debsources,vivekanand1101/debsources,zacchiro/debsources,clemux/debsources,oorestisime/debsources,matthieucan/debsources,Debian/debsources,matthieucan/debsources,vivekanand1101/debsources,zacchiro/debsources,matthieucan/debsources,oorestisime/debsources,clemux/debsources,zacchiro/debsources,Debian/debsources,oorestisime/debsources,nonas/debian-qa,clemux/debsources,zacchiro/debsources,sophiejjj/debsources,devoxel/debsources,nonas/debian-qa,devoxel/debsources,oorestisime/debsources,clemux/debsources,devoxel/debsources,oorestisime/debsources,matthieucan/debsources,vivekanand1101/debsources,vivekanand1101/debsources,nonas/debian-qa,devoxel/debsources,vivekanand1101/debsources,Debian/debsources,sophiejjj/debsources