bug#19031: 24.4; find-file in icomplete-mode shows completions with no input

[Andrii Kolomoiets]

Juri Linkov <juri@linkov.net> writes:

>> Please read "until user starts typing filename" in my previous message
>> as "until input doesn't contains part of filename" ;)
>
> This is some new feature that can be implemented by a new option,
> maybe something similar to icomplete-tidy-shadowed-file-names.

Agree.

> And here is the patch that implements what the name of
> icomplete-show-matches-on-no-input suggests:

Looks great!

One thing left to do is to change the docstring of the
icomplete-show-matches-on-no-input variable.