== sanity test 413k: QoS mkdir exclude prefixes ========== 21:12:02 (1786410722)
lmv.lustre-clilmv-ffff8e88c8a1b000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8e88c8a1b000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8e88c8a1b000.qos_exclude_prefixes=_temporary