But if you don't want to leave useless data on the disk, delete under
.elmo/multi and .elmo/archive in advance.
-** If you set obsolete variables (e.g. renamed ones), Wandelust shows warning
+** If you set obsolete variables (e.g. renamed ones), Wanderlust shows warning
messages and urge you to change settings.
To suppress warning messages, set elmo-obsolete-variable-show-warnings to
nil.