virt-sanlock-cleanup; Fix augtool usage
virt-sanlock-cleanup; Fix augtool usage

Surprisingly, augtool get (or print) returns "path = value" while we are
only interested in the value. We need to remove the "path = " part from
the augtool's output. The following is an example of the augtool command
as used in virt-sanlock-cleanup script:

$ augtool get /files/etc/libvirt/qemu-sanlock.conf/disk_lease_dir
/files/etc/libvirt/qemu-sanlock.conf/disk_lease_dir = /var/lib/libvirt/sanlock

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