== sanity test 413k: QoS mkdir exclude prefixes ========== 16:22:25 (1775852545)
lmv.lustre-clilmv-ffff944cec4e7000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff944cec4e7000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff944cec4e7000.qos_exclude_prefixes=_temporary