Re: Doc of deprecated INITIAL-INPUT arg of completing-read

[Stefan Monnier]

> For anything there must be reason. What is reason to "strongly warn"
> programmer not to use it?

Because there's a lot of past experience where people want to have the
Windows-style behavior where prompts get prefilled with the (selected)
default, and they don't understand that in order to get that they need
to change `completing-read`.  So instead they abuse `initial-content` in
their code (even though it doesn't give quite the same behavior either
but gets the closer).


        Stefan