== sanity test 413k: QoS mkdir exclude prefixes ========== 17:15:12 (1788470112)
lmv.lustre-clilmv-ffff94ecb865a800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff94ecb865a800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff94ecb865a800.qos_exclude_prefixes=_temporary