== sanity test 413k: QoS mkdir exclude prefixes ========== 12:28:57 (1789144137)
lmv.lustre-clilmv-ffff9dbf48f51000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9dbf48f51000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9dbf48f51000.qos_exclude_prefixes=_temporary