== sanity test 413k: QoS mkdir exclude prefixes ========== 16:33:50 (1789504430)
lmv.lustre-clilmv-ffff919c0ee25000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff919c0ee25000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff919c0ee25000.qos_exclude_prefixes=_temporary