== sanity test 413k: QoS mkdir exclude prefixes ========== 23:32:59 (1789270379)
lmv.lustre-clilmv-ffff9034326f6800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9034326f6800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9034326f6800.qos_exclude_prefixes=_temporary