Fix memory leak in virsh snapshot-list.
Fix memory leak in virsh snapshot-list.

We were forgetting to release the memory allocated by
virDomainSnapshotListNames.  Free the memory properly.

Signed-off-by: Chris Lalancette <60b62644009db6b194cc0445b64e9b27bb26433a@redhat.com>

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