== sanity test 413k: QoS mkdir exclude prefixes ========== 19:54:38 (1788652478)
lmv.lustre-clilmv-ffff981684eff000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff981684eff000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff981684eff000.qos_exclude_prefixes=_temporary