== sanity test 413k: QoS mkdir exclude prefixes ========== 18:57:31 (1788649051)
lmv.lustre-clilmv-ffff950ae9619000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff950ae9619000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff950ae9619000.qos_exclude_prefixes=_temporary