Add two docstrings in cl-lib.el

* lisp/emacs-lisp/cl-lib.el (cl--set-buffer-substring)
(cl--defalias): Add docstrings.  (Bug#66828)

diff --git a/lisp/emacs-lisp/cl-lib.el b/lisp/emacs-lisp/cl-lib.el
index 152a1fe9434243a4f814f4dd40cdccfb0ae1ea08..96197d43c3d94fa1311d7f90ac3b7c5e46d5d53b 100644 (file)
--- a/lisp/emacs-lisp/cl-lib.el
+++ b/lisp/emacs-lisp/cl-lib.el
@@ -157,6 +157,7 @@ to an element already in the list stored in PLACE.
     `(cl-callf2 cl-adjoin ,x ,place ,@keys)))
 
 (defun cl--set-buffer-substring (start end val)
+  "Delete region from START to END and insert VAL."
   (save-excursion (delete-region start end)
                  (goto-char start)
                  (insert val)
@@ -183,6 +184,9 @@ to an element already in the list stored in PLACE.
 ;; the target form to return the values as a list.
 
 (defun cl--defalias (cl-f el-f &optional doc)
+  "Define function CL-F as definition EL-F.
+
+For example, (cl--defalias 'cl-first 'car)."
   (defalias cl-f el-f doc)
   (put cl-f 'byte-optimizer 'byte-compile-inline-expand))