== sanity test 413k: QoS mkdir exclude prefixes ========== 21:20:40 (1788571240)
lmv.lustre-clilmv-ffff8ac5b664d000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8ac5b664d000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8ac5b664d000.qos_exclude_prefixes=_temporary