document numliterals fixer

git-svn-id: http://svn.python.org/projects/python/trunk@69435 6015fed2-1504-0410-9fe1-9d1591cc4771

Author: benjamin.peterson

Doc/library/2to3.rst

@@ -252,6 +252,10 @@ and off individually.  They are described here in more detail.
 
    Renames :meth:`~object.__nonzero__` to :meth:`~object.__bool__`.
 
+.. 2to3fixer:: numliterals
+
+   Converts octal literals into the new syntax.
+
 .. 2to3fixer:: paren
 
    Add extra parenthesis where they are required in list comprehensions.  For