Variable: ido-confirm-unique-completion
ido-confirm-unique-completion is a customizable variable defined in
ido.el.gz.
Value
nil
Documentation
Non-nil means that even a unique completion must be confirmed.
This means that M-x ido-complete (ido-complete) must always be followed by M-x ido-exit-minibuffer (ido-exit-minibuffer)
even when there is only one unique completion.
Source Code
;; Defined in /usr/src/emacs/lisp/ido.el.gz
(defcustom ido-confirm-unique-completion nil
"Non-nil means that even a unique completion must be confirmed.
This means that \\[ido-complete] must always be followed by \\[ido-exit-minibuffer]
even when there is only one unique completion."
:type 'boolean)