== sanity test 413k: QoS mkdir exclude prefixes ========== 19:12:13 (1781219533)
lmv.lustre-clilmv-ffff986f51fd7800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff986f51fd7800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff986f51fd7800.qos_exclude_prefixes=_temporary