[Feature #145028639] Fix the test to assert contents of the email.

- Fixed the assertion to confirm the contents of the email.
	:pencil2:

hc/accounts/tests/test_login.py

@@ -17,14 +17,14 @@ def test_it_sends_link(self):
 
         r = self.client.post("/accounts/login/", form)
         assert r.status_code == 302
-        ### Assert that a user was created
+        ### **Assert that a user was created
         final_list = len(User.objects.all())
         self.assertEqual(1, final_list)
         # And email sent
         self.assertEqual(len(mail.outbox), 1)
         self.assertEqual(mail.outbox[0].subject, 'Log in to healthchecks.io')
         ### Assert contents of the email body
-
+        self.assertIn("please open the link below:", mail.outbox[0].body)
         ### Assert that check is associated with the new user
 
     def test_it_pops_bad_link_from_session(self):