== sanity test 413k: QoS mkdir exclude prefixes ========== 20:18:50 (1788567530)
lmv.lustre-clilmv-ffff99d5c8b90800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff99d5c8b90800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff99d5c8b90800.qos_exclude_prefixes=_temporary