== sanity test 413k: QoS mkdir exclude prefixes ========== 20:33:29 (1785890009)
lmv.lustre-clilmv-ffff94b5a0089000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff94b5a0089000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff94b5a0089000.qos_exclude_prefixes=_temporary