== sanity test 413k: QoS mkdir exclude prefixes ========== 10:20:48 (1787149248)
lmv.lustre-clilmv-ffff915e61340000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff915e61340000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff915e61340000.qos_exclude_prefixes=_temporary