== sanity test 413k: QoS mkdir exclude prefixes ========== 20:27:02 (1768267622)
lmv.lustre-clilmv-ffff8a058738e000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8a058738e000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8a058738e000.qos_exclude_prefixes=_temporary