== sanity test 413k: QoS mkdir exclude prefixes ========== 11:40:04 (1775835604)
lmv.lustre-clilmv-ffff917217eb5800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff917217eb5800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff917217eb5800.qos_exclude_prefixes=_temporary