== sanity test 413k: QoS mkdir exclude prefixes ========== 21:22:44 (1788571364)
lmv.lustre-clilmv-ffff9a6583566000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9a6583566000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9a6583566000.qos_exclude_prefixes=_temporary