== sanity test 413k: QoS mkdir exclude prefixes ========== 13:38:02 (1787852282)
lmv.lustre-clilmv-ffff92359f368000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff92359f368000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff92359f368000.qos_exclude_prefixes=_temporary