Add a comment about cl-concatenate

* lisp/emacs-lisp/cl-extra.el (cl-concatenate): Add a comment.

diff --git a/lisp/emacs-lisp/cl-extra.el b/lisp/emacs-lisp/cl-extra.el
index fd94554ca1935e4433e1566b599cc465a1c69c64..8e38df43c876d9f6a2199b34f830e25bc10ed570 100644 (file)
--- a/lisp/emacs-lisp/cl-extra.el
+++ b/lisp/emacs-lisp/cl-extra.el
@@ -553,6 +553,9 @@ too large if positive or too small if negative)."
                        ,new)))))
   (seq-subseq seq start end))
 
+;;; This isn't a defalias because autoloading defalises doesn't work
+;;; very well.
+
 ;;;###autoload
 (defun cl-concatenate (type &rest sequences)
   "Concatenate, into a sequence of type TYPE, the argument SEQUENCEs.