== sanity test 413k: QoS mkdir exclude prefixes ========== 16:38:48 (1788467928)
lmv.lustre-clilmv-ffff94fa43015000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff94fa43015000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff94fa43015000.qos_exclude_prefixes=_temporary