== sanity test 413k: QoS mkdir exclude prefixes ========== 17:17:10 (1775769430)
lmv.lustre-clilmv-ffff978d504be000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff978d504be000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff978d504be000.qos_exclude_prefixes=_temporary