== sanity test 413k: QoS mkdir exclude prefixes ========== 17:16:31 (1761254191)
lmv.lustre-clilmv-ffff88f666ac2000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88f666ac2000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88f666ac2000.qos_exclude_prefixes=_temporary