[Rd] Fix documentation about <- and = differences

[Duncan Murdoch]

On 2025-01-04 1:25 a.m., Philip Rogers wrote:
> Hello R devs,
> 
> this StackOverflow answer says that the R documentation is wrong:
> https://stackoverflow.com/a/51564252/1719931
> 
> Can we fi it?

Why do you think the SO answer is right and the docs are wrong?  Maybe 
the parser is just missing a user error.

My own feeling is that any use of "=" as an assignment operator is too much.

Duncan Murdoch