[damned-lies] Fixed typo in skipUnless message

[Claude Paroz <claudep src gnome org>]

commit 253c65e760cfb49909e0c84b23b3371d7b6ce490
Author: Claude Paroz <claude 2xlibre net>
Date:   Mon Jun 25 16:59:03 2018 +0200

    Fixed typo in skipUnless message
    
    Thanks Piotr Drąg for noticing.

 stats/tests/tests.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/stats/tests/tests.py b/stats/tests/tests.py
index 49cb2c38..e079ffa6 100644
--- a/stats/tests/tests.py
+++ b/stats/tests/tests.py
@@ -511,7 +511,7 @@ class DomainTests(TestCase):
         self.addCleanup(os.remove, str(potfile))
         self.assertTrue(potfile.exists())
 
-    @skipUnless(has_translate_subtitle_support, "This test needs translate-toolit subtitles support.")
+    @skipUnless(has_translate_subtitle_support, "This test needs translate-toolkit subtitles support.")
     def test_subtitles_pot(self):
         dom = Domain.objects.create(
             module=self.mod, name='po', dtype='ui', directory='subtitles',