== sanity test 413k: QoS mkdir exclude prefixes ========== 10:35:56 (1788186956)
lmv.lustre-clilmv-ffff96864e83c000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff96864e83c000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff96864e83c000.qos_exclude_prefixes=_temporary