== sanity test 413k: QoS mkdir exclude prefixes ========== 02:36:53 (1787380613)
lmv.lustre-clilmv-ffff92b0d09c1800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff92b0d09c1800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff92b0d09c1800.qos_exclude_prefixes=_temporary