bug#18048: 24.3.92; [patch] eldoc improvements

[Thierry Volpiatto <thierry.volpiatto@gmail.com>]

Also the words &key and &allow-other-keys are upcased.

diff --git a/lisp/emacs-lisp/eldoc.el b/lisp/emacs-lisp/eldoc.el
index c64ec52..85c40b6 100644
--- a/lisp/emacs-lisp/eldoc.el
+++ b/lisp/emacs-lisp/eldoc.el
@@ -551,12 +551,15 @@ ARGLIST is either a string, or a list of strings or symbols."
 
 (defun eldoc-function-argstring-format (argstring)
   "Apply `eldoc-argument-case' to each word in ARGSTRING.
-The words \"&rest\", \"&optional\" are returned unchanged."
-  (mapconcat (lambda (s)
-	       (if (string-match-p "\\`(?&\\(?:optional\\|rest\\))?\\'" s)
-		   s
-		 (funcall eldoc-argument-case s)))
-	     (split-string argstring) " "))
+The words \"&rest\", \"&optional\", \"&key\" and \"&allow-other-keys\"
+are returned unchanged."
+  (mapconcat
+   (lambda (s)
+     (if (string-match-p
+          "\\`(?&\\(?:optional\\|rest\\|key\\|allow-other-keys\\))?\\'" s)
+         s
+       (funcall eldoc-argument-case s)))
+   (split-string argstring) " "))


-- 
Thierry
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