'zfs get' enhancement - mountpoint as an argument
cmd - userland programs
'zfs get' command should be able to deal with mountpoint as an argument.
It already works with 'zfs list' command:
# zfs list /export/home/estibi NAME USED AVAIL REFER MOUNTPOINT rpool/export/home/estibi 1.14G 3.86G 1.14G /export/home/estibi
but it fails with 'zfs get':
# zfs get all /export/home/estibi cannot open '/export/home/estibi': invalid dataset name