== sanity test 413k: QoS mkdir exclude prefixes ========== 19:02:20 (1781823740)
lmv.lustre-clilmv-ffff8b1ef12f2000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8b1ef12f2000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8b1ef12f2000.qos_exclude_prefixes=_temporary