4168 ztest assertion failure in dbuf_undirty
4169 verbatim import causes zdb to segfault
4170 zhack leaves pool in ACTIVE state
Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: Eric Schrock <eric.schrock@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>

*** 3840,3851 ****
                          spa_configfile_set(spa, props, B_FALSE);
  
                  spa_config_sync(spa, B_FALSE, B_TRUE);
  
                  mutex_exit(&spa_namespace_lock);
-                 spa_history_log_version(spa, "import");
- 
                  return (0);
          }
  
          spa_activate(spa, mode);
  
--- 3840,3849 ----