== sanity test 413k: QoS mkdir exclude prefixes ========== 05:53:36 (1787392416)
lmv.lustre-clilmv-ffff9a5045cbc000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9a5045cbc000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9a5045cbc000.qos_exclude_prefixes=_temporary