== sanity test 413k: QoS mkdir exclude prefixes ========== 10:10:17 (1787753417)
lmv.lustre-clilmv-ffff8b0449eed000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8b0449eed000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8b0449eed000.qos_exclude_prefixes=_temporary