== sanity test 413k: QoS mkdir exclude prefixes ========== 20:08:20 (1775866100)
lmv.lustre-clilmv-ffff9555c90a1000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9555c90a1000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9555c90a1000.qos_exclude_prefixes=_temporary