== sanity test 413k: QoS mkdir exclude prefixes ========== 22:57:20 (1763351840)
lmv.lustre-clilmv-ffff8ba32b72e000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8ba32b72e000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8ba32b72e000.qos_exclude_prefixes=_temporary