2 files changed, 11 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index 813344744b..5e8b20337f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Sun Jun 22 09:51:14 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* object.c (rb_class_superclass): rdoc improvement, a patch from
+	  Gaston Ramos <ramos.gaston AT gmail.com> in [ruby-core:17371].
+
 Sun Jun 22 09:22:32 2008  URABE Shyouhei  <shyouhei@ruby-lang.org>
 
 	* README.EXT: translated README.EXT.ja
diff --git a/object.c b/object.c
index e4f513763e..83b541b205 100644
--- a/object.c
+++ b/object.c
@@ -1437,6 +1437,12 @@ rb_class_new_instance(int argc, VALUE *argv, VALUE klass)
  *     File.superclass          #=> IO
  *     IO.superclass            #=> Object
  *     Object.superclass        #=> BasicObject
+ *     class Foo; end
+ *     class Bar < Foo; end
+ *     Bar.superclass           #=> Foo
+ *
+ *  returns nil when the given class hasn't a parent class:
+ *
  *     BasicObject.superclass   #=> nil
  *     
  */