* files.el (basic-save-buffer): Don't let errors in

* files.el (basic-save-buffer): Don't let errors in
before-save-hook prevent saving buffer.

* progmodes/octave.el (octave-function-file-p)
(octave-skip-comment-forward, octave-function-file-comment)
(octave-update-function-file-comment): New functions.
(octave-mode-map): Bind C-c ; to
octave-update-function-file-comment.
(octave-mode-menu): Add octave-update-function-file-comment.
(octave-mode, inferior-octave-mode): Fix doc-string.
(octave-insert-defun): Conform to Octave's coding convention.

Fixes: debbugs:14285