== sanity test 413k: QoS mkdir exclude prefixes ========== 23:51:11 (1782618671)
lmv.lustre-clilmv-ffff9e9751361000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9e9751361000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9e9751361000.qos_exclude_prefixes=_temporary