== sanity test 413k: QoS mkdir exclude prefixes ========== 18:19:49 (1788819589)
lmv.lustre-clilmv-ffff890743836800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff890743836800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff890743836800.qos_exclude_prefixes=_temporary