== sanity test 413k: QoS mkdir exclude prefixes ========== 17:58:18 (1775771898)
lmv.lustre-clilmv-ffff9c6484f74000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9c6484f74000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9c6484f74000.qos_exclude_prefixes=_temporary