identity, ignore: Make arg names more consistent with docs

* lisp/subr.el (ignore): Rename argument IGNORE to ARGUMENTS.

* src/fns.c (Fidentity): Rename ARG to ARGUMENT.

* doc/lispref/functions.texi (Calling Functions): Fix references.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/fns.c b/src/fns.c
index 37c581f15b8..fc1abe8b18a 100644
--- a/src/fns.c
+++ b/src/fns.c
@@ -49,11 +49,11 @@ static bool internal_equal (Lisp_Object, Lisp_Object,
                             enum equal_kind, int, Lisp_Object);
 
 DEFUN ("identity", Fidentity, Sidentity, 1, 1, 0,
-       doc: /* Return the argument unchanged.  */
+       doc: /* Return the ARGUMENT unchanged.  */
        attributes: const)
-  (Lisp_Object arg)
+  (Lisp_Object argument)
 {
-  return arg;
+  return argument;
 }
 
 DEFUN ("random", Frandom, Srandom, 0, 1, 0,