== sanity test 413k: QoS mkdir exclude prefixes ========== 06:39:56 (1779878396)
lmv.lustre-clilmv-ffff989f0730e000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff989f0730e000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff989f0730e000.qos_exclude_prefixes=_temporary