lxd/init: Checks if a zfs storage pool or dataset exists
lxd/init: Checks if a zfs storage pool or dataset exists

Signed-off-by: David Negreira <d27937f914ebe99ee315f04449678eccfb658191@otherreality.net>

Skarlso/lxd,hallyn/lxd,stgraber/lxd,stgraber/lxd,atxwebs/lxd,atxwebs/lxd,mjeanson/lxd,lxc/lxd,mjeanson/lxd,lxc/lxd,stgraber/lxd,hallyn/lxd,hallyn/lxd,stgraber/lxd,Skarlso/lxd,Skarlso/lxd,stgraber/lxd,stgraber/lxd,mjeanson/lxd,lxc/lxd,stgraber/lxd,lxc/lxd,hallyn/lxd,atxwebs/lxd,hallyn/lxd,Skarlso/lxd,lxc/lxd,hallyn/lxd,lxc/lxd,lxc/lxd,atxwebs/lxd