== sanity test 413k: QoS mkdir exclude prefixes ========== 16:29:08 (1761251348)
lmv.lustre-clilmv-ffff9937da9bc000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9937da9bc000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9937da9bc000.qos_exclude_prefixes=_temporary