== sanity test 413k: QoS mkdir exclude prefixes ========== 23:04:41 (1782615881)
lmv.lustre-clilmv-ffff91092ce08000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff91092ce08000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff91092ce08000.qos_exclude_prefixes=_temporary