eval_error.c: quote unprintable

* eval_error.c (rb_print_undef, rb_print_undef_str): quote unprintable
  names.

* eval_error.c (rb_print_inaccessible): ditto

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46962 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

eval_error.c

@@ -245,8 +245,8 @@ void
 rb_print_inaccessible(VALUE klass, ID id, int scope)
 {
     const char *v = method_scope_name(scope);
-    rb_name_error(id, "method `%s' for %s `% "PRIsVALUE"' is %s",
+    rb_name_error(id, "method `%"PRIsVALUE"' for %s `% "PRIsVALUE"' is %s",
-		  rb_id2name(id),
+		  QUOTE_ID(id),
 		  (RB_TYPE_P(klass, T_MODULE)) ? "module" : "class",
 		  rb_class_name(klass),
 		  v);