== sanity test 413k: QoS mkdir exclude prefixes ========== 01:52:14 (1787118734)
lmv.lustre-clilmv-ffff9653204ac000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9653204ac000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9653204ac000.qos_exclude_prefixes=_temporary