== sanity test 413k: QoS mkdir exclude prefixes ========== 07:35:41 (1789644941)
lmv.lustre-clilmv-ffff95fc8cd02000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff95fc8cd02000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff95fc8cd02000.qos_exclude_prefixes=_temporary