let $targetdir=$MYSQLTEST_VARDIR/tmp/backup;
let $extra_lsndir=$MYSQLTEST_VARDIR/tmp/extra_lsndir;
mkdir $extra_lsndir;
--disable_result_log
exec $XTRABACKUP --defaults-file=$MYSQLTEST_VARDIR/my.cnf --backup --target-dir=$targetdir --extra-lsndir=$extra_lsndir;
--enable_result_log
list_files $extra_lsndir;
rmdir $extra_lsndir;
rmdir $targetdir;