parseaddr(): Fixed in the same way that Message.getaddrlist() was
fixed (re: SF bug #555035).  Include a unittest.
diff --git a/Lib/test/test_rfc822.py b/Lib/test/test_rfc822.py
index dfce7c9..6add15b 100644
--- a/Lib/test/test_rfc822.py
+++ b/Lib/test/test_rfc822.py
@@ -213,6 +213,15 @@
         addrs.sort()
         eq(addrs, ccs)
 
+    def test_parseaddr(self):
+        eq = self.assertEqual
+        eq(rfc822.parseaddr('<>'), ('', ''))
+        eq(rfc822.parseaddr('aperson@dom.ain'), ('', 'aperson@dom.ain'))
+        eq(rfc822.parseaddr('bperson@dom.ain (Bea A. Person)'),
+           ('Bea A. Person', 'bperson@dom.ain'))
+        eq(rfc822.parseaddr('Cynthia Person <cperson@dom.ain>'),
+           ('Cynthia Person', 'cperson@dom.ain'))
+
 def test_main():
     test_support.run_unittest(MessageTestCase)