== sanity test 413k: QoS mkdir exclude prefixes ========== 12:04:26 (1790697866)
lmv.lustre-clilmv-ffff8bca92d91800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8bca92d91800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8bca92d91800.qos_exclude_prefixes=_temporary