[damned-lies] Refs #142 - Forgotten module prefix to utils function

[Claude Paroz <claudep src gnome org>]

commit 616a75349df90b87be64a4b596aafbfeccefbf33
Author: Claude Paroz <claude 2xlibre net>
Date:   Fri Mar 22 21:02:42 2019 +0100

    Refs #142 - Forgotten module prefix to utils function

 stats/models.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/stats/models.py b/stats/models.py
index 50c27fa5..9c4f4ac9 100644
--- a/stats/models.py
+++ b/stats/models.py
@@ -787,7 +787,7 @@ class Domain(models.Model):
                             break
             elif pot_method == 'gettext':
                 # Filter out strings NOT to be translated, typically icon file names.
-                exclude_untrans_messages(potfile)
+                utils.exclude_untrans_messages(potfile)
 
         if errors:
             return "", errors