== sanity test 413k: QoS mkdir exclude prefixes ========== 01:44:17 (1781243057)
lmv.lustre-clilmv-ffff99650944b000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff99650944b000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff99650944b000.qos_exclude_prefixes=_temporary