== sanity test 413k: QoS mkdir exclude prefixes ========== 17:34:03 (1730583243)
lmv.lustre-clilmv-ffff8800a9688000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800a9688000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800a9688000.qos_exclude_prefixes=_temporary