== sanity test 413k: QoS mkdir exclude prefixes ========== 23:33:55 (1777001635)
lmv.lustre-clilmv-ffff8db2ec67a000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8db2ec67a000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8db2ec67a000.qos_exclude_prefixes=_temporary