== sanity test 413k: QoS mkdir exclude prefixes ========== 01:52:38 (1780811558)
lmv.lustre-clilmv-ffffa016ea212800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffffa016ea212800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffffa016ea212800.qos_exclude_prefixes=_temporary