== sanity test 413k: QoS mkdir exclude prefixes ========== 17:21:28 (1781212888)
lmv.lustre-clilmv-ffff8ee1b0c29000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8ee1b0c29000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8ee1b0c29000.qos_exclude_prefixes=_temporary