== sanity test 413k: QoS mkdir exclude prefixes ========== 01:30:31 (1789191031)
lmv.lustre-clilmv-ffff945dd2c5c000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff945dd2c5c000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff945dd2c5c000.qos_exclude_prefixes=_temporary