== sanity test 413k: QoS mkdir exclude prefixes ========== 13:19:13 (1789319953)
lmv.lustre-clilmv-ffff90d678a78000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff90d678a78000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff90d678a78000.qos_exclude_prefixes=_temporary