== sanity test 413k: QoS mkdir exclude prefixes ========== 17:14:23 (1775855663)
lmv.lustre-clilmv-ffff9e0ad201b000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9e0ad201b000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9e0ad201b000.qos_exclude_prefixes=_temporary