== sanity test 413k: QoS mkdir exclude prefixes ========== 22:31:43 (1781663503)
lmv.lustre-clilmv-ffff94aeb0c7e800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff94aeb0c7e800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff94aeb0c7e800.qos_exclude_prefixes=_temporary