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/replacement/replacement.cfg
  
*** 56,65 ****
--- 57,67 ----
  
          if poolexists $TESTPOOL1; then
                  destroy_pool $TESTPOOL1
          fi
  
+         [[ -e $TESTDIR1 ]] && log_must rm -rf $TESTDIR1
          [[ -e $TESTDIR ]] && log_must rm -rf $TESTDIR/*
  }
  
  log_assert "Replacing a disk during I/O completes."