== sanity test 413k: QoS mkdir exclude prefixes ========== 20:33:16 (1753749196)
lmv.lustre-clilmv-ffff963e88e6b000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff963e88e6b000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff963e88e6b000.qos_exclude_prefixes=_temporary