== sanity test 413k: QoS mkdir exclude prefixes ========== 04:08:08 (1789373288)
lmv.lustre-clilmv-ffff928d0b3bb000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff928d0b3bb000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff928d0b3bb000.qos_exclude_prefixes=_temporary