== sanity test 413k: QoS mkdir exclude prefixes ========== 10:56:53 (1786028213)
lmv.lustre-clilmv-ffff890fe021a000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff890fe021a000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff890fe021a000.qos_exclude_prefixes=_temporary