Fixed typo in ModelTagManager - thanks, Christos Trochalakis

git-svn-id: https://django-tagging.googlecode.com/svn/trunk@152 83e7428b-ec2a-0410-86f2-bf466d0e5e72

Author: insin

tagging/managers.py

@@ -23,7 +23,7 @@ def related(self, tags, *args, **kwargs):
         return Tag.objects.related_for_model(tags, self.model, *args, **kwargs)
 
     def usage(self, *args, **kwargs):
-        return Tag.objects.usage_for_model(self.model, *arg, **kwargs)
+        return Tag.objects.usage_for_model(self.model, *args, **kwargs)
 
 class ModelTaggedItemManager(models.Manager):
     """