fix crash when ReplApplication.do() is called with a function instead of a backend method name
fix crash when ReplApplication.do() is called with a function instead of a backend method name

RouxRC/weboob,nojhan/weboob-devel,nojhan/weboob-devel,willprice/weboob,willprice/weboob,sputnick-dev/weboob,sputnick-dev/weboob,RouxRC/weboob,willprice/weboob,RouxRC/weboob,sputnick-dev/weboob,nojhan/weboob-devel