== sanity test 413k: QoS mkdir exclude prefixes ========== 03:39:29 (1788853169)
lmv.lustre-clilmv-ffff8a2e4280d000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8a2e4280d000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8a2e4280d000.qos_exclude_prefixes=_temporary