== sanity test 413k: QoS mkdir exclude prefixes ========== 20:24:19 (1786407859)
lmv.lustre-clilmv-ffff903e9876e000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff903e9876e000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff903e9876e000.qos_exclude_prefixes=_temporary