== sanity test 413k: QoS mkdir exclude prefixes ========== 01:23:06 (1718860986)
lmv.lustre-clilmv-ffff88012a5ad800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88012a5ad800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88012a5ad800.qos_exclude_prefixes=_temporary