== sanity test 413k: QoS mkdir exclude prefixes ========== 21:38:57 (1787103537)
lmv.lustre-clilmv-ffff8edd71380000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8edd71380000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8edd71380000.qos_exclude_prefixes=_temporary