== sanity test 413k: QoS mkdir exclude prefixes ========== 23:41:25 (1788493285)
lmv.lustre-clilmv-ffff933b268d5000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff933b268d5000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff933b268d5000.qos_exclude_prefixes=_temporary