(risky-local-variable-p): Make second argument optional.

diff --git a/lisp/files.el b/lisp/files.el
index 2b80f591343ae17816020732784ed2d54d070e74..1dc6e5454df1ce148133aa3e05701386f381b631 100644 (file)
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -2179,9 +2179,10 @@ is specified, returning t if it is specified."
 ;; This case is safe because the user gets to check it before it is used.
 (put 'compile-command 'safe-local-variable 'stringp)
 
-(defun risky-local-variable-p (sym val)
+(defun risky-local-variable-p (sym &optional val)
   "Non-nil if SYM could be dangerous as a file-local variable with value VAL.
-If VAL is nil, the question is whether any value might be dangerous."
+If VAL is nil or omitted, the question is whether any value might be
+dangerous."
   (let ((safep (get sym 'safe-local-variable)))
     (or (memq sym ignored-local-variables)
        (get sym 'risky-local-variable)