Refactor range in delete_suffix (#85)

znz · kou · commit 7ff57a50e81c · 2019-04-15T12:12:26.000+09:00
diff --git a/lib/csv/delete_suffix.rb b/lib/csv/delete_suffix.rb
@@ -7,7 +7,7 @@ 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
