community/py3-lz4: fix $PYTHONPATH in check()

community/py3-lz4/APKBUILD

@@ -51,7 +51,7 @@ build() {
 check() {
 	python3 -m venv --clear --without-pip --system-site-packages .testenv
 	.testenv/bin/python3 -m installer .dist/*.whl
-	export PYTHONPATH="$(echo testenv/lib/python3*/site-packages/):$PWD"
+	export PYTHONPATH="$(echo .testenv/lib/python3*/site-packages/):$PWD"
 	.testenv/bin/python3 -P -m pytest tests/block tests/frame
 }