4448 zfs diff misprints unicode characters

Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com>
Reviewed by: Toomas Soome <tsoome@me.com>
Approved by: Matthew Ahrens <mahrens@delphix.com>
Author: Joshua M. Clulow <jmc@joyent.com>

illumos/illumos-gate@b211eb9181f99c20acbf4c528f94cb44b4ca8c31