== sanity test 413k: QoS mkdir exclude prefixes ========== 20:03:51 (1763341431)
lmv.lustre-clilmv-ffff98f0802b0800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff98f0802b0800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff98f0802b0800.qos_exclude_prefixes=_temporary