emacs-28 5f8849425c: Fix typo in `(emacs) Lisp Doc'

[Stefan Kangas]

branch: emacs-28
commit 5f8849425cad71fa173008bcf87b9aec07730dba
Author: Stefan Kangas <stefankangas@gmail.com>
Commit: Stefan Kangas <stefankangas@gmail.com>

    Fix typo in `(emacs) Lisp Doc'
    
    * doc/emacs/programs.texi (Lisp Doc): Fix reference to
    'eldoc-echo-area-display-truncation-message'.  (Bug#58324)
---
 doc/emacs/programs.texi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/emacs/programs.texi b/doc/emacs/programs.texi
index c746a374b3..9eb11c602d 100644
--- a/doc/emacs/programs.texi
+++ b/doc/emacs/programs.texi
@@ -1316,8 +1316,8 @@ This abnormal hook holds documentation functions.  It 
acts as a
 collection of backends for ElDoc.  This is what modes should use to
 register their documentation functions with ElDoc.
 
-@vindex eldoc-display-truncation-message
-@item eldoc-display-truncation-message
+@vindex eldoc-echo-area-display-truncation-message
+@item eldoc-echo-area-display-truncation-message
 If non-@code{nil} (the default), display a verbose message about how
 to view a complete documentation (if it has been truncated in the echo
 area).  If @code{nil}, just mark truncated messages with @samp{...}.