lib/csv/delete_suffix.rb in csv-3.0.9 vs lib/csv/delete_suffix.rb in csv-3.1.0

@@ -5,10 +5,10 @@
   class CSV
     module DeleteSuffix
       refine String do
         def delete_suffix(suffix)
           if end_with?(suffix)
-            self[0..(-(suffix.size + 1))]
+            self[0...-suffix.size]
           else
             self
           end
         end
       end