== sanity test 413k: QoS mkdir exclude prefixes ========== 06:49:19 (1789123759)
lmv.lustre-clilmv-ffff94c6334d9000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff94c6334d9000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff94c6334d9000.qos_exclude_prefixes=_temporary