== sanity test 413k: QoS mkdir exclude prefixes ========== 19:27:23 (1777505243)
lmv.lustre-clilmv-ffff9ce883fa6800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9ce883fa6800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9ce883fa6800.qos_exclude_prefixes=_temporary