Added support for the 'zfs list -t snap' and 'zfs snap' aliases which are
available under Oracle Solaris 11.
This includes an update to the ZFS(8) man page to reflect all the
available alias (snap, umount, and recv).
Initial changes obtained from ZFS On Linux + fixes for man page and cmd
help:
https://github.com/zfsonlinux/zfs/commit/10b75496bb0cb7a7b8146c263164adc37f1d176a
https://github.com/zfsonlinux/zfs/commit/cf81b00a73fe47fdb21586ac1cc179b734540973
Obtained from: https://github.com/zfsonlinux/zfs
MFC after: 2 weeks
Sponsored by: Multiplay