2 files changed, 13 insertions, 3 deletions

diff --git a/doc/misc/cl.texi b/doc/misc/cl.texi
index 4f15cf53d4a..5af41a4465e 100644
--- a/doc/misc/cl.texi
+++ b/doc/misc/cl.texi
@@ -1179,6 +1179,11 @@ behavior.  (@code{point} and @code{point-marker} are equivalent
 as @code{setf} places; each will accept either an integer or a
 marker as the stored value.)
 
+Like in the case of @code{let}, the @var{value} forms are evaluated in
+the order they appear, but the order of bindings is unspecified.
+Therefore, avoid binding the same @var{place} more than once in a
+single @code{cl-letf} form.
+
 Since generalized variables look like lists, @code{let}'s shorthand
 of using @samp{foo} for @samp{(foo nil)} as a @var{binding} would
 be ambiguous in @code{cl-letf} and is not allowed.
diff --git a/doc/misc/ediff.texi b/doc/misc/ediff.texi
index 376aaeea46e..896a6041e86 100644
--- a/doc/misc/ediff.texi
+++ b/doc/misc/ediff.texi
@@ -1247,9 +1247,14 @@ merged (see @code{ediff-cleanup-hook}, below).
 @vindex ediff-cleanup-hook
 This hook is run just before @code{ediff-quit-hook}.  This is a good
 place to do various cleanups, such as deleting the variant buffers.
-Ediff provides a function, @code{ediff-janitor}, as one such possible
-hook, which you can add to @code{ediff-cleanup-hook} with
-@code{add-hook}.
+Ediff provides a helper function, @code{ediff-janitor}, that you can
+invoke from a private hook function.  For example:
+
+@example
+(defun my-ediff-janitor ()
+  (ediff-janitor nil nil))
+(add-hook 'ediff-cleanup-hook #'my-ediff-janitor)
+@end example
 
 @findex ediff-janitor
 This function kills buffers A, B, and, possibly, C, if these buffers aren't