== sanity test 413k: QoS mkdir exclude prefixes ========== 11:51:21 (1754409081)
lmv.lustre-clilmv-ffff8a69c4e19000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8a69c4e19000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8a69c4e19000.qos_exclude_prefixes=_temporary