== sanity test 413k: QoS mkdir exclude prefixes ========== 03:50:33 (1753429833)
lmv.lustre-clilmv-ffff9dfb8560e800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9dfb8560e800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9dfb8560e800.qos_exclude_prefixes=_temporary