GitLab

	* ediff-mult.el (ediff-default-filtering-regexp): new variable.

	* ediff-util.el (ediff-maybe-save-and-delete-merge): change in a
	message.

	* ediff.el (ediff-directories,ediff-directory-revisions,
	ediff-directories3,ediff-merge-directories,
	ediff-merge-directories-with-ancestor,ediff-merge-directory-revisions,
	ediff-merge-directory-revisions-with-ancestor): make use of the new
	ediff-default-filtering-regexp variable.