== sanity test 413k: QoS mkdir exclude prefixes ========== 07:58:55 (1781611135)
lmv.lustre-clilmv-ffff8cc114590000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8cc114590000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8cc114590000.qos_exclude_prefixes=_temporary