== sanity test 413k: QoS mkdir exclude prefixes ========== 23:36:53 (1788838613)
lmv.lustre-clilmv-ffff935ad0ef9000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff935ad0ef9000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff935ad0ef9000.qos_exclude_prefixes=_temporary