7290 ZFS test suite needs to control what utilities it can run
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>

@@ -24,20 +24,20 @@
 # Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 # Use is subject to license terms.
 #
 
 #
-# Copyright (c) 2013 by Delphix. All rights reserved.
+# Copyright (c) 2013, 2016 by Delphix. All rights reserved.
 #
 
 . $STF_SUITE/include/libtest.shlib
 . $STF_SUITE/tests/functional/grow_pool/grow_pool.cfg
 
 verify_runnable "global"
 
 ismounted $TESTFS && \
-        log_must $ZFS umount $TESTDIR
+        log_must zfs umount $TESTDIR
 destroy_pool "$TESTPOOL"
 
 #
 # Here we create & destroy a zpool using the disks
 # because this resets the partitions to normal