(prefer-coding-system): Fix doc, prompt.

diff --git a/lisp/international/mule-util.el b/lisp/international/mule-util.el
index 28a9c916e4be051c06b30d660e0964bb5cdfcc05..45b5c1330b0a179b571728221f63f715260d6781 100644 (file)
--- a/lisp/international/mule-util.el
+++ b/lisp/international/mule-util.el
@@ -320,7 +320,8 @@ or one is an alias of the other."
 
 ;;;###autoload
 (defun prefer-coding-system (coding-system)
-  (interactive "zPrefered coding system: ")
+  "Add CODING-SYSTEM at the front of the priority list for automatic detection."
+  (interactive "zPrefer coding system: ")
   (if (not (and coding-system (coding-system-p coding-system)))
       (error "Invalid coding system `%s'" coding-system))
   (let ((coding-category (coding-system-category coding-system))