tiny typo in lisp/emacs-lisp/copyright.el

[Jim Meyering]

diff --git a/lisp/emacs-lisp/copyright.el b/lisp/emacs-lisp/copyright.el
index cc392a3..318dcf6 100644
--- a/lisp/emacs-lisp/copyright.el
+++ b/lisp/emacs-lisp/copyright.el
@@ -57,7 +57,7 @@ The second \\( \\) construct must match the years."
 (defcustom copyright-names-regexp ""
   "Regexp matching the names which correspond to the user.
 Only copyright lines where the name matches this regexp will be updated.
-This allows you to avoid adding yars to a copyright notice belonging to
+This allows you to avoid adding years to a copyright notice belonging to
 someone else or to a group for which you do not work."
   :group 'copyright
   :type 'regexp)