== sanity test 413k: QoS mkdir exclude prefixes ========== 22:09:48 (1786759788)
lmv.lustre-clilmv-ffff950099952000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff950099952000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff950099952000.qos_exclude_prefixes=_temporary