== sanity test 413k: QoS mkdir exclude prefixes ========== 02:45:56 (1781246756)
lmv.lustre-clilmv-ffff8f0b610e1000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8f0b610e1000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8f0b610e1000.qos_exclude_prefixes=_temporary