== sanity test 413k: QoS mkdir exclude prefixes ========== 06:00:12 (1786356012)
lmv.lustre-clilmv-ffff8f36c838c800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8f36c838c800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8f36c838c800.qos_exclude_prefixes=_temporary