== sanity test 413k: QoS mkdir exclude prefixes ========== 22:31:11 (1772681471)
lmv.lustre-clilmv-ffff99e7f0c05000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff99e7f0c05000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff99e7f0c05000.qos_exclude_prefixes=_temporary