qemu: replace exec hook with virCommandSetUID/GID in storage_backend
qemu: replace exec hook with virCommandSetUID/GID in storage_backend

rlaager/libvirt,shugaoye/libvirt,datto/libvirt,rlaager/libvirt,jardasgit/libvirt,iam-TJ/libvirt,andreabolognani/libvirt,jardasgit/libvirt,iam-TJ/libvirt,iam-TJ/libvirt,eskultety/libvirt,crobinso/libvirt,shugaoye/libvirt,nertpinx/libvirt,taget/libvirt,VenkatDatta/libvirt,jfehlig/libvirt,VenkatDatta/libvirt,jardasgit/libvirt,siboulet/libvirt-openvz,jfehlig/libvirt,libvirt/libvirt,fabianfreyer/libvirt,taget/libvirt,fabianfreyer/libvirt,elmarco/libvirt,fabianfreyer/libvirt,eskultety/libvirt,trainstack/libvirt,VenkatDatta/libvirt,zippy2/libvirt,zippy2/libvirt,siboulet/libvirt-openvz,elmarco/libvirt,trainstack/libvirt,agx/libvirt,iam-TJ/libvirt,crobinso/libvirt,agx/libvirt,datto/libvirt,iam-TJ/libvirt,iam-TJ/libvirt,nertpinx/libvirt,olafhering/libvirt,cbosdo/libvirt,jfehlig/libvirt,trainstack/libvirt,andreabolognani/libvirt,cbosdo/libvirt,libvirt/libvirt,VenkatDatta/libvirt,olafhering/libvirt,VenkatDatta/libvirt,jardasgit/libvirt,siboulet/libvirt-openvz,taget/libvirt,zhlcindy/libvirt-1.1.4-maintain,agx/libvirt,crobinso/libvirt,iam-TJ/libvirt,taget/libvirt,siboulet/libvirt-openvz,libvirt/libvirt,jfehlig/libvirt,datto/libvirt,shugaoye/libvirt,trainstack/libvirt,datto/libvirt,zhlcindy/libvirt-1.1.4-maintain,fabianfreyer/libvirt,rlaager/libvirt,olafhering/libvirt,trainstack/libvirt,elmarco/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,zippy2/libvirt,zippy2/libvirt,cbosdo/libvirt,siboulet/libvirt-openvz,elmarco/libvirt,zhlcindy/libvirt-1.1.4-maintain,nertpinx/libvirt,trainstack/libvirt,agx/libvirt,cbosdo/libvirt,trainstack/libvirt,nertpinx/libvirt,andreabolognani/libvirt,crobinso/libvirt,andreabolognani/libvirt,taget/libvirt,nertpinx/libvirt,rlaager/libvirt,datto/libvirt,shugaoye/libvirt,olafhering/libvirt,andreabolognani/libvirt,cbosdo/libvirt,shugaoye/libvirt,elmarco/libvirt,zhlcindy/libvirt-1.1.4-maintain,eskultety/libvirt,eskultety/libvirt,libvirt/libvirt,agx/libvirt,eskultety/libvirt,zhlcindy/libvirt-1.1.4-maintain,rlaager/libvirt