Fix minor issues in libxenlight managed save
Fix minor issues in libxenlight managed save

There were a few minor issues in commit 5b6c961e
- leak managed save path
- leak managed save fd
- functions that open an fd should also close it

warewolf/libvirt,cbosdo/libvirt,nertpinx/libvirt,taget/libvirt,nertpinx/libvirt,novel/fbsd-libvirt,usc-isi/libvirt,zhlcindy/libvirt-1.1.4-maintain,wiedi/libvirt,emaste/libvirt,rmarwaha/libvirt1,nertpinx/libvirt,jfehlig/libvirt,rlaager/libvirt,leilihh/libvirt,iam-TJ/libvirt,novel/fbsd-libvirt,kantai/libvirt-vfork,iam-TJ/libvirt,jeckersb/libvirt,zippy2/libvirt,warewolf/libvirt,danwent/libvirt-ovs,novel/fbsd-libvirt,novel/fbsd-libvirt,warewolf/libvirt,foomango/libvirt,jeckersb/libvirt,fabianfreyer/libvirt,libvirt/libvirt,novel/fbsd-libvirt,datto/libvirt,elmarco/libvirt,trainstack/libvirt,dumbbell/libvirt,siboulet/libvirt-openvz,crobinso/libvirt,rmarwaha/libvirt1,warewolf/libvirt,rmarwaha/libvirt1,usc-isi/libvirt,taget/libvirt,cbosdo/libvirt,bjzhang/libvirt,shugaoye/libvirt,jardasgit/libvirt,rlaager/libvirt,leilihh/libvirt,cbosdo/libvirt,jfehlig/libvirt,shugaoye/libvirt,dumbbell/libvirt,zhlcindy/libvirt-1.1.4-maintain,rmarwaha/libvirt,soulxu/libvirt-xuhj,kantai/libvirt-vfork,emaste/libvirt,andreabolognani/libvirt,jardasgit/libvirt,libvirt/libvirt,siboulet/libvirt-openvz,rlaager/libvirt,novel/fbsd-libvirt,leilihh/libvirt,rmarwaha/libvirt,andreabolognani/libvirt,trainstack/libvirt,rlaager/libvirt,datto/libvirt,jeckersb/libvirt,crobinso/libvirt,nertpinx/libvirt,wiedi/libvirt,jeckersb/libvirt,agx/libvirt,jfehlig/libvirt,jfehlig/libvirt,zhlcindy/libvirt-1.1.4-maintain,zhlcindy/libvirt-1.1.4-maintain,leilihh/libvirt,crobinso/libvirt,bjzhang/libvirt,agx/libvirt,soulxu/libvirt-xuhj,dumbbell/libvirt,iam-TJ/libvirt,datto/libvirt,rmarwaha/libvirt1,emaste/libvirt,datto/libvirt,danwent/libvirt-ovs,olafhering/libvirt,elmarco/libvirt,siboulet/libvirt-openvz,crobinso/libvirt,foomango/libvirt,andreabolognani/libvirt,fabianfreyer/libvirt,trainstack/libvirt,rmarwaha/libvirt1,rlaager/libvirt,warewolf/libvirt,rmarwaha/libvirt,wiedi/libvirt,eskultety/libvirt,rmarwaha/libvirt,bjzhang/libvirt,VenkatDatta/libvirt,foomango/libvirt,usc-isi/libvirt,dumbbell/libvirt,bjzhang/libvirt,shugaoye/libvirt,elmarco/libvirt,jardasgit/libvirt,kantai/libvirt-vfork,olafhering/libvirt,zhlcindy/libvirt-1.1.4-maintain,trainstack/libvirt,siboulet/libvirt-openvz,trainstack/libvirt,iam-TJ/libvirt,rmarwaha/libvirt,libvirt/libvirt,shugaoye/libvirt,soulxu/libvirt-xuhj,dumbbell/libvirt,jeckersb/libvirt,rmarwaha/libvirt,wiedi/libvirt,agx/libvirt,iam-TJ/libvirt,foomango/libvirt,bjzhang/libvirt,soulxu/libvirt-xuhj,VenkatDatta/libvirt,eskultety/libvirt,cbosdo/libvirt,foomango/libvirt,danwent/libvirt-ovs,usc-isi/libvirt,kantai/libvirt-vfork,jardasgit/libvirt,fabianfreyer/libvirt,eskultety/libvirt,fabianfreyer/libvirt,iam-TJ/libvirt,emaste/libvirt,nertpinx/libvirt,shugaoye/libvirt,usc-isi/libvirt,agx/libvirt,novel/fbsd-libvirt,agx/libvirt,dumbbell/libvirt,taget/libvirt,olafhering/libvirt,warewolf/libvirt,wiedi/libvirt,datto/libvirt,elmarco/libvirt,olafhering/libvirt,trainstack/libvirt,VenkatDatta/libvirt,kantai/libvirt-vfork,wiedi/libvirt,emaste/libvirt,novel/fbsd-libvirt,jardasgit/libvirt,trainstack/libvirt,VenkatDatta/libvirt,novel/fbsd-libvirt,zippy2/libvirt,zippy2/libvirt,leilihh/libvirt,taget/libvirt,eskultety/libvirt,danwent/libvirt-ovs,iam-TJ/libvirt,wiedi/libvirt,VenkatDatta/libvirt,soulxu/libvirt-xuhj,rmarwaha/libvirt1,andreabolognani/libvirt,warewolf/libvirt,libvirt/libvirt,fabianfreyer/libvirt,andreabolognani/libvirt,leilihh/libvirt,jeckersb/libvirt,elmarco/libvirt,siboulet/libvirt-openvz,emaste/libvirt,cbosdo/libvirt,zippy2/libvirt,jeckersb/libvirt,taget/libvirt,emaste/libvirt,danwent/libvirt-ovs,eskultety/libvirt