Fix mailer encoding test:

- better name to be able to match it when running single test on the
  command line
- use iso8859-1 instead of latin1, python2.7 will convert latin1 to
  iso8859-1 which made the test fail

Author: Ralf Schlatterbeck

test/test_mailer.py

@@ -4,13 +4,13 @@
 from roundup import mailer
 
 class EncodingTestCase(unittest.TestCase):
-    def test(self):
+    def testEncoding(self):
         a = lambda n, a, c, o: self.assertEquals(mailer.nice_sender_header(n,
             a, c), o)
-        a('ascii', '[email protected]', 'latin1', 'ascii <[email protected]>')
-        a(u'café', '[email protected]', 'latin1',
-            '=?latin1?q?caf=E9?= <[email protected]>')
-        a('as"ii', '[email protected]', 'latin1', '"as\\"ii" <[email protected]>')
+        a('ascii', '[email protected]', 'iso8859-1', 'ascii <[email protected]>')
+        a(u'café', '[email protected]', 'iso8859-1',
+            '=?iso8859-1?q?caf=E9?= <[email protected]>')
+        a('as"ii', '[email protected]', 'iso8859-1', '"as\\"ii" <[email protected]>')
 
 def test_suite():
     suite = unittest.TestSuite()