== sanity test 413k: QoS mkdir exclude prefixes ========== 10:58:20 (1787756300)
lmv.lustre-clilmv-ffff9dff05574000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9dff05574000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9dff05574000.qos_exclude_prefixes=_temporary