#! /bin/sh

comment=`cat $2`
gimp -i -b "\
(let* ((image (car (gimp-file-load 1 \"$1\" \"$1\"))))
      (gimp-image-attach-parasite image (list \"gimp-comment\" 0 \"$comment\"))
      (gimp-file-save 1 image (car (gimp-image-get-active-drawable image))
		      \"$3\" \"$3\"))
    (gimp-quit 1)"