== sanity test 413k: QoS mkdir exclude prefixes ========== 05:50:33 (1784281833)
lmv.lustre-clilmv-ffff9bf7b4b36800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9bf7b4b36800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9bf7b4b36800.qos_exclude_prefixes=_temporary