Default insecure to false in sample config

In PR [1] the default for insecure was set to False.  This commit
updates the sample configuration file to match that default.

NOTE: We also mock out test_insecure as is done in test_secure so that
      the test doesn't actually rely on what is set in openstack.ini to
      pass.

[1] https://review.openstack.org/#/c/474366/

Change-Id: I5257be8cfb9483ac7dd02b893e4a22a2ee46bbf7

etc/openstack.ini

@@ -7,7 +7,7 @@
 # Allow insecure TLS (https) requests.
 #   If your SSL certificate is not valid set this option to true,
 #   else omit it or set it false.
-insecure = true
+insecure = false
 
 auth_url = https://127.0.0.1:5000/v3
 

tests/unit/test_os_utils.py

@@ -154,10 +154,11 @@ class TestOSUtilsConnection(unittest.TestCase):
 
     def test_insecure(self):
         """Test True insecure value."""
-        self.osu = os_utils.OpenStack(
-            os_auth_args=self.config
-        )
-        self.assertFalse(self.osu.verify)
+        with mock.patch.dict(self.config, {'insecure': 'True'}):
+            self.osu = os_utils.OpenStack(
+                os_auth_args=self.config
+            )
+            self.assertFalse(self.osu.verify)
 
     def test_secure(self):
         """Test False insecure value."""