== sanity test 413k: QoS mkdir exclude prefixes ========== 12:52:36 (1776876756)
lmv.lustre-clilmv-ffff949a03852000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff949a03852000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff949a03852000.qos_exclude_prefixes=_temporary