Update doc/note/auto-formatting.md comparison link
diff --git a/doc/note/auto-formatting.md b/doc/note/auto-formatting.md
index 878f771..066787e 100644
--- a/doc/note/auto-formatting.md
+++ b/doc/note/auto-formatting.md
@@ -4,7 +4,7 @@
- Hand-written `C` code is formatted by `clang-format-9 -style=Chromium`.
- Auto-generated `C` code is formatted by [`dumbindent`](/cmd/dumbindent),
which isn't as 'pretty' in some sense, but is [substantially
- faster](https://github.com/google/wuffs/blob/2858c4cfc27a6c083f751db473a4d0d8a7355474/cmd/dumbindent/main.go#L32-L44),
+ faster](https://github.com/google/wuffs/blob/22d08366c82f276479d3459322382adc4722cadb/cmd/dumbindent/main.go#L35-L47),
making the edit-compile-run cycle more productive.
- `Go` code is formatted by `gofmt`.
- `Wuffs` code is formatted by [`wuffsfmt`](/cmd/wuffsfmt).
