Changes from Python 3.1 to Python 3.2

--- /home/docs/checkouts/readthedocs.org/user_builds/restrictedpython/checkouts/latest/docs/contributing/ast/python3_1.ast
+++ /home/docs/checkouts/readthedocs.org/user_builds/restrictedpython/checkouts/latest/docs/contributing/ast/python3_2.ast
@@ -1,7 +1,7 @@
--- Python 3.1 AST
+-- Python 3.2 AST
 -- ASDL's four builtin types are identifier, int, string, object
 
-module Python version "3.1"
+module Python version "3.2"
 {
     mod = Module(stmt* body)
         | Interactive(stmt* body)
@@ -21,7 +21,7 @@
                     expr? starargs,
                     expr? kwargs,
                     stmt* body,
-                    expr *decorator_list)
+                    expr* decorator_list)
          | Return(expr? value)
 
          | Delete(expr* targets)
@@ -40,7 +40,7 @@
          | Assert(expr test, expr? msg)
 
          | Import(alias* names)
-         | ImportFrom(identifier module, alias* names, int? level)
+         | ImportFrom(identifier? module, alias* names, int? level)
 
          | Global(identifier* names)
          | Nonlocal(identifier* names)