util-linux-2.11z-mountpoint

A patch for util-linux that fixes umount's behavior when dealing with volumes remounted using –bind. When looking up data in /etc/mtab in order to unmount a volume, any mnt_dir match should take priority because unmounting by fsname is obsolete. Otherwise unmounting a volume that was also mounted with –bind will misbehave (Parent's mnt_dir is child's mnt_fsname).