[R] Replacing underscore character in Windows GUI

[nels.tomlinson.1]

Hello, all,

I'd like to propose that now that the underscore-as-assignment-operator
is to be removed from R (good thing, too), that the Windows GUI should
replace the underscore ``_''  with the proper assignment operator ``<-''
when you type in the underscore character.

This is the current default behaviour in the ESS mode in emacs, and seems
to me to be a generally good idea.  If no one can come up with a good
reason not to do this, I hope that the maintainers of the GUI will put it
on their to-do list.

Thanks,
Nels