== sanity test 413k: QoS mkdir exclude prefixes ========== 02:19:44 (1721888384)
lmv.lustre-clilmv-ffff8800a83ef000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800a83ef000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800a83ef000.qos_exclude_prefixes=_temporary