== sanity test 413k: QoS mkdir exclude prefixes ========== 18:49:06 (1781218146)
lmv.lustre-clilmv-ffff95c20adc9000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff95c20adc9000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff95c20adc9000.qos_exclude_prefixes=_temporary