== sanity test 413k: QoS mkdir exclude prefixes ========== 03:20:28 (1769761228)
lmv.lustre-clilmv-ffff8f3d580ed800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8f3d580ed800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8f3d580ed800.qos_exclude_prefixes=_temporary