== sanity test 413k: QoS mkdir exclude prefixes ========== 02:01:37 (1790748097)
lmv.lustre-clilmv-ffff90c4ceea0000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff90c4ceea0000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff90c4ceea0000.qos_exclude_prefixes=_temporary