NEX-2911 NDMP logging should use syslog and is too chatty
NEX-2842 SMB client authentication fails in adt_set_user() with IDMU enabled
NEX-2975 SMB2 Cancel may fail
Reviewed by: Kevin Crowe <kevin.crowe@nexenta.com>
Reviewed by: Tony Nguyen <tony.nguyen@nexenta.com>