== sanity test 413k: QoS mkdir exclude prefixes ========== 05:59:02 (1779875942)
lmv.lustre-clilmv-ffff93a548bf4000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff93a548bf4000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff93a548bf4000.qos_exclude_prefixes=_temporary