Emacs-24 Space bar () complete file

This was changed to allow entering file name with space without quote.  The old behaviour can be restored with

class="lisp">(define-key minibuffer-local-filename-completion-map (kbd "SPC")
       'minibuffer-complete-word)
     
(define-key minibuffer-local-must-match-filename-map (kbd "SPC")
       'minibuffer-complete-word)