OpenZFS 8077 - zfs-tests suite fails zpool_get_002_pos

OpenZFS 8077 - zfs-tests suite fails zpool_get_002_pos

Authored by: Yuri Pankov <yuri.pankov@nexenta.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: John Kennedy <jwk404@gmail.com>
Approved by: Richard Lowe <richlowe@richlowe.net>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Ported-by: bunder2015 <omfgbunder@gmail.com>
Porting Notes:
* Also corrected a quoting mistake found in our copy

OpenZFS-issue: https://www.illumos.org/issues/8077
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/481467d
Closes #6163