GitLab

* emacs-lisp/autoload.el (generated-autoload-file): Set to nil.
(autoload-find-generated-file): New function.
(generate-file-autoloads): Bind generated-autoload-file to
buffer-file-name.
(update-file-autoloads, update-directory-autoloads): Use
autoload-find-generated-file.  If called interactively, prompt for
output file.
(batch-update-autoloads): Doc fix.