bug#12638: 24.2.50; FR: Some suggestions for icomplete-mode

[Jambunathan K]

>> The attached patch fixes the issue by sneaking a Ctrl-M in to the try
>> try completion field.
>
> That looks ugly and I don't find the ^M to be very intuitive.
>
> Basically there are 2 options:
> - Let "" be anywhere in the {...} list rather than only at the beginning.
>   This would seem inconvenient if it's not compensated by some other
>   "Complete, but not unique" marker.  Your ^M is one such option.
>   We could also keep an empty () (or []), which is fairly logical and
>   might be vaguely intuitive.

My vote goes for option 1.

> - Force "" to be at the beginning and have minibuffer-force-complete
>   skip the empty completion, so the user would have to hit RET rather
>   than C-j to select the exact text he typed.