== sanity test 413k: QoS mkdir exclude prefixes ========== 13:12:16 (1787505136)
lmv.lustre-clilmv-ffff9e6d530d2000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9e6d530d2000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9e6d530d2000.qos_exclude_prefixes=_temporary