Fix whitspace issue from #17

netfields/managers.py

@@ -36,8 +36,8 @@ class NetWhere(sql.where.WhereNode):
 
     def _prepare_data(self, data):
         """
-            Special form of WhereNode._prepare_data() that does not automatically consume the
-            __iter__ method of IPNetwork objects.  This is used in Django >= 1.6
+        Special form of WhereNode._prepare_data() that does not automatically consume the
+        __iter__ method of IPNetwork objects.  This is used in Django >= 1.6
         """
 
         if not isinstance(data, (list, tuple)):