testing/apk-autoupdate: fix linter issues

testing/apk-autoupdate/APKBUILD

@@ -11,18 +11,16 @@ license="MIT"
 depends="apk-tools"
 makedepends="asciidoctor"
 subpackages="$pkgname-doc"
-source="$pkgname-$_gitrev.tar.gz::https://github.com/jirutka/$pkgname/archive/$_gitrev.tar.gz
+source="$pkgname-$_gitrev.tar.gz::https://github.com/jirutka/apk-autoupdate/archive/$_gitrev.tar.gz
 	default-openrc-libexec.patch
 	"
 builddir="$srcdir/$pkgname-$_gitrev"
 
 build() {
-	cd "$builddir"
 	make build prefix=/usr
 }
 
 package() {
-	cd "$builddir"
 	make install DESTDIR="$pkgdir" prefix=/usr
 }