== sanity test 413k: QoS mkdir exclude prefixes ========== 22:39:11 (1787798351)
lmv.lustre-clilmv-ffff8eac4738b000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8eac4738b000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8eac4738b000.qos_exclude_prefixes=_temporary