== sanity test 413k: QoS mkdir exclude prefixes ========== 06:08:49 (1789034929)
lmv.lustre-clilmv-ffff97d8861f4800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff97d8861f4800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff97d8861f4800.qos_exclude_prefixes=_temporary