test_gopher(): Squash another deprecation

warning about gopherlib.

Lib/test/test_urllib2.py

@@ -704,6 +704,11 @@ class NetworkTests(unittest.TestCase):
         self._test_urls(urls, self._extra_handlers())
 
     def test_gopher(self):
+        import warnings
+        warnings.filterwarnings("ignore",
+                                "the gopherlib module is deprecated",
+                                DeprecationWarning,
+                                "urllib2$")
         urls = [
             # Thanks to Fred for finding these!
             'gopher://gopher.lib.ncsu.edu/11/library/stacks/Alex',