== sanity test 413k: QoS mkdir exclude prefixes ========== 19:31:13 (1781220673)
lmv.lustre-clilmv-ffff8af9050cd000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8af9050cd000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8af9050cd000.qos_exclude_prefixes=_temporary