Fix issue10065 - future_builtins' docstring lacks some functions

Modules/future_builtins.c

@@ -14,12 +14,20 @@ but that conflict with builtins that already exist in Python 2.x.\n\
 \n\
 Functions:\n\
 \n\
-hex(arg) -- Returns the hexadecimal representation of an integer\n\
-oct(arg) -- Returns the octal representation of an integer\n\
+ascii(arg) -- Returns the canonical string representation of an object.\n\
+filter(pred, iterable) -- Returns an iterator yielding those items of \n\
+       iterable for which pred(item) is true.\n\
+hex(arg) -- Returns the hexadecimal representation of an integer.\n\
+map(func, *iterables) -- Returns an iterator that computes the function \n\
+    using arguments from each of the iterables.\n\
+oct(arg) -- Returns the octal representation of an integer.\n\
+zip(iter1 [,iter2 [...]]) -- Returns a zip object whose .next() method \n\
+    returns a tuple where the i-th element comes from the i-th iterable \n\
+    argument.\n\
 \n\
 The typical usage of this module is to replace existing builtins in a\n\
 module's namespace:\n \n\
-from future_builtins import hex, oct\n");
+from future_builtins import ascii, filter, map, hex, oct, zip\n");
 
 static PyObject *
 builtin_hex(PyObject *self, PyObject *v)