== sanity test 413k: QoS mkdir exclude prefixes ========== 21:28:19 (1763346499)
lmv.lustre-clilmv-ffff90f65a241000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff90f65a241000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff90f65a241000.qos_exclude_prefixes=_temporary