[1: bdbe3a8995]: 2000-09-29 19:11:42 +0000
  (comment-indent-function): Use 0 for ;;; and %%%. (comment-indent): Make sure there's a space between code and comment[...]
  http://git.savannah.gnu.org/cgit/emacs.git/commit/?id=bdbe3a8995c5f1dae126acd4be4872f6af687cd1