== sanity test 413k: QoS mkdir exclude prefixes ========== 18:21:05 (1775773265)
lmv.lustre-clilmv-ffff89512b29c000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff89512b29c000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff89512b29c000.qos_exclude_prefixes=_temporary