Your bug report #16971: 24.3.50; comment-beginning behaves differently in current newcomment.el, leads to error in comment-indent-new-line which was filed against the emacs package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 16971@debbugs.gnu.org. -- 16971: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16971 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems