== sanity test 413k: QoS mkdir exclude prefixes ========== 15:39:54 (1785958794)
lmv.lustre-clilmv-ffff92c2c31d7800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff92c2c31d7800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff92c2c31d7800.qos_exclude_prefixes=_temporary