Fix for "adjustment with non-zero page size" warning messages with
newer gtk+2

--- src/gData.mli.orig	Thu Sep 18 08:47:06 2014
+++ src/gData.mli	Thu Sep 18 11:24:43 2014
@@ -74,7 +74,7 @@ class adjustment : Gtk.adjustment obj ->
     @param upper default value is [100.]
     @param step_incr default value is [1.]
     @param page_incr default value is [10.]
-    @param page_size default value is [10.] *)
+    @param page_size default value is [0.] *)
 val adjustment :
   ?value:float ->
   ?lower:float ->