Trying to destroy a pool with a newer version than what the running system
supports results in 'zpool' coredumping. The library should be able to handle
an ENOTSUP errno and report the correct error messages without the coredump.
zfs-890-1# zpool upgrade
This system is currently running ZFS pool version 8.
The following pools are formatted using a newer software version and
cannot be accessed on the current system.
VER POOL
--- ------------
9 testpool.563834
Use 'zpool upgrade -v' for a list of available versions and their associated
features.
zfs-890-1# zpool destroy testpool.563834
internal error: Operation not supported
Abort (core dumped)