== sanity test 413k: QoS mkdir exclude prefixes ========== 09:05:09 (1726837509)
lmv.lustre-clilmv-ffff880088c73000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff880088c73000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff880088c73000.qos_exclude_prefixes=_temporary