testing/diffstat: disable due to not having a tagged release archive

testing/diffstat/APKBUILD

@@ -5,7 +5,7 @@ pkgver=1.64
 pkgrel=0
 pkgdesc="read the output of diff and displays a histogram of the insertions, deletions, and modifications per-file"
 url="https://invisible-island.net/diffstat"
-arch="all"
+arch="" # No tagged release archive
 license="MIT"
 subpackages="$pkgname-doc"
 source="https://invisible-island.net/datafiles/release/diffstat.tar.gz"