[ESS] Turning off ess-smart-underscore

[Stephen Eglen]

> The readme <http://ess.r-project.org/Manual/readme.html> says that I =
> should be able to turn this off using (ess-smart-underscore nil) in my =
> .emacs file. However, I get this error:
> Debugger entered--Lisp error: (wrong-number-of-arguments #[nil =

thanks for the report -- there is a mistake (probably made by me,
sorry) in the docs; it should be:

(ess-toggle-underscore nil)

Thanks, Stephen