== sanity test 413k: QoS mkdir exclude prefixes ========== 23:32:10 (1775878330)
lmv.lustre-clilmv-ffff906ec60a1000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff906ec60a1000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff906ec60a1000.qos_exclude_prefixes=_temporary