== sanity test 413k: QoS mkdir exclude prefixes ========== 10:38:56 (1758811136)
lmv.lustre-clilmv-ffff984ec5ce7800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff984ec5ce7800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff984ec5ce7800.qos_exclude_prefixes=_temporary