== sanity test 413k: QoS mkdir exclude prefixes ========== 16:02:41 (1785787361)
lmv.lustre-clilmv-ffff9b73851c7800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9b73851c7800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9b73851c7800.qos_exclude_prefixes=_temporary