== sanity test 413k: QoS mkdir exclude prefixes ========== 11:19:06 (1786807146)
lmv.lustre-clilmv-ffff8fcd50a5a000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8fcd50a5a000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8fcd50a5a000.qos_exclude_prefixes=_temporary