Allow a page break in a code longish example.

Doc/ext/extending.tex

@@ -996,11 +996,13 @@ static PyMethodDef keywdarg_methods[] = {
      * only take two PyObject* parameters, and keywdarg_parrot() takes
      * three.
      */
-    {"parrot", (PyCFunction)keywdarg_parrot, METH_VARARGS|METH_KEYWORDS,
+    {"parrot", (PyCFunction)keywdarg_parrot, METH_VARARGS | METH_KEYWORDS,
      "Print a lovely skit to standard output."},
     {NULL, NULL, 0, NULL}   /* sentinel */
 };
+\end{verbatim}
 
+\begin{verbatim}
 void
 initkeywdarg(void)
 {