== sanity test 413k: QoS mkdir exclude prefixes ========== 10:33:16 (1766417596)
lmv.lustre-clilmv-ffff9f9b47dac000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9f9b47dac000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9f9b47dac000.qos_exclude_prefixes=_temporary