== sanity test 413k: QoS mkdir exclude prefixes ========== 19:09:35 (1787872175)
lmv.lustre-clilmv-ffff8c955a3ed800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8c955a3ed800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8c955a3ed800.qos_exclude_prefixes=_temporary