== sanity test 413k: QoS mkdir exclude prefixes ========== 19:52:01 (1787442721)
lmv.lustre-clilmv-ffff9ec28bcf2000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9ec28bcf2000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9ec28bcf2000.qos_exclude_prefixes=_temporary