== sanity test 413k: QoS mkdir exclude prefixes ========== 06:53:49 (1786013629)
lmv.lustre-clilmv-ffff9c62d2e2e800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9c62d2e2e800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9c62d2e2e800.qos_exclude_prefixes=_temporary