== sanity test 413k: QoS mkdir exclude prefixes ========== 20:11:16 (1787875876)
lmv.lustre-clilmv-ffff9d0ef390d000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9d0ef390d000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9d0ef390d000.qos_exclude_prefixes=_temporary