== sanity test 413k: QoS mkdir exclude prefixes ========== 05:10:42 (1781687442)
lmv.lustre-clilmv-ffff90ed3ef5f000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff90ed3ef5f000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff90ed3ef5f000.qos_exclude_prefixes=_temporary