Add spaces and proper formatting to linum-mode.

gistfile1.el

;; Add spaces and proper formatting to linum-mode. It uses more room than
;; necessary, but that's not a problem since it's only in use when going to
;; lines.
(setq linum-format (lambda (line)
  (propertize
   (format (concat " %"
                   (number-to-string
                    (length (number-to-string
                             (line-number-at-pos (point-max)))))
                   "d ")
           line)
   'face 'linum)))