bug#12443: 24.2.50; Default values in the minibuffer prompt (fix inconsisntecy)

[Lars Ingebrigtsen]

Juri Linkov <juri@linkov.net> writes:

> Here is what I see when trying the old prompt:
>
>   (read-from-minibuffer
>     "New name for tab (leave blank for automatic naming): "
>     nil nil nil nil "tab-name")
>
> Typing RET returns the empty string "".

D'oh.  I missed this bit:

Sixth arg DEFAULT-VALUE, if non-nil, should be a string, which is used
  as the default to ‘read’ if READ is non-nil and the user enters
  empty input.  But if READ is nil, this function does _not_ return
  DEFAULT-VALUE for empty input!  Instead, it returns the empty string.

I'll go over that commit and revert the bits with a nil READ.

But what a...  strange interface.  

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   bloggy blog: http://lars.ingebrigtsen.no