== sanity test 413k: QoS mkdir exclude prefixes ========== 13:40:19 (1722793219)
lmv.lustre-clilmv-ffff88012a49c800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88012a49c800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88012a49c800.qos_exclude_prefixes=_temporary