NEX-3363 Test suites don't cleanup after themselves properly.
Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com>
4206 history_003_pos relies on exact size of history log and entries
4207 history_008_pos depends on obsolete internal history log message
4208 Typo in zfs_main.c: "posxiuser"
4209 Populate zfstest with the remainder of the STF tests
Reviewed by: Sonu Pillai <sonu.pillai@delphix.com>
Reviewed by: Will Guyette <will.guyette@delphix.com>
Reviewed by: Eric Diven <eric.diven@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Approved by: Richard Lowe <richlowe@richlowe.net>

@@ -25,20 +25,21 @@
 # Use is subject to license terms.
 #
 
 #
 # Copyright (c) 2013, 2016 by Delphix. All rights reserved.
+# Copyright 2015 Nexenta Systems, Inc. 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 $TESTDIR
-destroy_pool "$TESTPOOL"
+ismounted $TESTFS && log_must zfs umount $TESTDIR
+destroy_pool $TESTPOOL
+[[ -e $TESTDIR ]] && log_must rm -rf $TESTDIR
 
 #
 # Here we create & destroy a zpool using the disks
 # because this resets the partitions to normal
 #