== sanity test 413k: QoS mkdir exclude prefixes ========== 14:23:02 (1780338182)
lmv.lustre-clilmv-ffff98676be49000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff98676be49000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff98676be49000.qos_exclude_prefixes=_temporary