== sanity test 413k: QoS mkdir exclude prefixes ========== 23:29:10 (1746156550)
lmv.lustre-clilmv-ffff8800ab3ed000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800ab3ed000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800ab3ed000.qos_exclude_prefixes=_temporary