== sanity test 413k: QoS mkdir exclude prefixes ========== 11:30:41 (1786635041)
lmv.lustre-clilmv-ffff88a6a6a1a000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88a6a6a1a000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88a6a6a1a000.qos_exclude_prefixes=_temporary