== sanity test 413k: QoS mkdir exclude prefixes ========== 12:33:57 (1780331637)
lmv.lustre-clilmv-ffff986143e27800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff986143e27800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff986143e27800.qos_exclude_prefixes=_temporary