== sanity test 413k: QoS mkdir exclude prefixes ========== 21:56:54 (1788919014)
lmv.lustre-clilmv-ffff8d0ac7a82000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8d0ac7a82000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8d0ac7a82000.qos_exclude_prefixes=_temporary