Merge pull request #446 in RMS/api-main-service from gladys-dev2 to RMSv2

* commit '8caf7208':
  update deleg

app/applicationlayer/management/delegation/views.py

@@ -123,7 +123,7 @@ class DelegationViewSet(viewsets.ModelViewSet):
 
         old_instance = model_to_dict(instance)
 
-        # restrictions
+        # restriction
         if not (old_instance['name'].lower() == 'head of department' or
                 old_instance['name'].lower() == 'sd/od' or
                 old_instance['name'].lower() == 'change control board' or