== sanity test 413k: QoS mkdir exclude prefixes ========== 03:28:57 (1788938937)
lmv.lustre-clilmv-ffff946e5deab000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff946e5deab000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff946e5deab000.qos_exclude_prefixes=_temporary