== sanity test 413k: QoS mkdir exclude prefixes ========== 16:33:41 (1780000421)
lmv.lustre-clilmv-ffff97d7866c9000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff97d7866c9000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff97d7866c9000.qos_exclude_prefixes=_temporary