(define-key map (kbd "M-g") 'ibuffer-jump-to-buffer)
(define-key map (kbd "M-s a C-s") 'ibuffer-do-isearch)
(define-key map (kbd "M-s a M-C-s") 'ibuffer-do-isearch-regexp)
+ (define-key map (kbd "M-s a C-o") 'ibuffer-do-occur)
(define-key map (kbd "DEL") 'ibuffer-unmark-backward)
(define-key map (kbd "M-DEL") 'ibuffer-unmark-all)
(define-key map (kbd "* *") 'ibuffer-unmark-all)