illumos gate

#7290 missed some cases:

usr/src/test/zfs-tests/tests/functional/zvol/zvol_misc/zvol_misc_002_pos.ksh:$FSCK -n /dev/zvol/rdsk/$TESTPOOL/$TESTVOL@snap >/dev/null 2>&1
usr/src/test/zfs-tests/tests/functional/zvol/zvol_misc/zvol_misc_002_pos.ksh:(( $retval == 39 )) || log_fail "$FSCK exited with wrong value $retval " 
usr/src/test/zfs-tests/tests/functional/cli_root/zpool_destroy/zpool_destroy_002_pos.ksh:                   log_must $UNMOUNT $TESTDIR
usr/src/test/zfs-tests/tests/functional/xattr/xattr_009_neg.ksh:log_mustnot runat $TESTDIR/myfile.$$ $LN -s /etc/passwd foo
usr/src/test/zfs-tests/tests/functional/xattr/xattr_009_neg.ksh:log_mustnot runat $TESTDIR/myfile.$$ $LN /etc/passwd foo
usr/src/test/zfs-tests/tests/perf/perf.shlib:                               typeset logbase="$(get_perf_output_dir)/$($BASENAME \
usr/src/test/zfs-tests/tests/functional/threadsappend/threadsappend_001_pos.ksh:log_must $THREADSAPPEND ${TESTDIR}/${TESTFILE}

not sure about this one, doesn't seem to be defined anywhere:

usr/src/test/zfs-tests/tests/perf/perf.shlib:                                   $SUDO_COMMAND)" 
usr/src/test/zfs-tests/tests/perf/perf.shlib:                   $SUDO_COMMAND)"