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>

*** 25,34 ****
--- 25,35 ----
  # 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/migration/migration.cfg
  
*** 38,47 ****
--- 39,49 ----
  (( $? == 0 )) && log_must umount -f $NONZFS_TESTDIR
  
  ismounted $TESTPOOL/$TESTFS
  [[ $? == 0 ]] && log_must zfs umount -f $TESTDIR
  destroy_pool $TESTPOOL
+ [[ -e $TESTDIR ]] && log_must rm -rf $TESTDIR
  
  # recreate and destroy a zpool over the disks to restore the partitions to
  # normal
  case $DISK_COUNT in
  0)