== sanity test 413k: QoS mkdir exclude prefixes ========== 10:55:10 (1790780110)
lmv.lustre-clilmv-ffff999a4e6c2000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff999a4e6c2000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff999a4e6c2000.qos_exclude_prefixes=_temporary