== sanity test 413k: QoS mkdir exclude prefixes ========== 12:47:52 (1786639672)
lmv.lustre-clilmv-ffff9c34e6237800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9c34e6237800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9c34e6237800.qos_exclude_prefixes=_temporary