Updates:
Status: WontFix
Comment #1 on issue 1205 by pekka.klarck: arguments in log file can not
show chinese string
http://code.google.com/p/robotframework/issues/detail?id=1205
This is by design. Arguments that are logged by the framework in trace level show Python repr() of the argument. If the argument is Unicode string containing non-ASCII characters, you will see the character in u'\uXXXX' format.
