== sanity test 413k: QoS mkdir exclude prefixes ========== 11:46:49 (1787845609)
lmv.lustre-clilmv-ffff894dee576000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff894dee576000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff894dee576000.qos_exclude_prefixes=_temporary