== sanity test 413k: QoS mkdir exclude prefixes ========== 22:13:06 (1789524786)
lmv.lustre-clilmv-ffff8dba10ecf000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8dba10ecf000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8dba10ecf000.qos_exclude_prefixes=_temporary