== sanity test 413k: QoS mkdir exclude prefixes ========== 23:46:51 (1781236011)
lmv.lustre-clilmv-ffff9199d1745000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9199d1745000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9199d1745000.qos_exclude_prefixes=_temporary