Issue #21750: Further fixup to be styled like other mock APIs.
diff --git a/NEWS b/NEWS
index 90897a2..f3f0086 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,9 @@
+Library
+-------
+
+- Issue #21750: mock_open.read_data can now be read from each instance, as it
+  could in Python 3.3.
+
 - Issue #18622: unittest.mock.mock_open().reset_mock would recurse infinitely.
   Patch from Nicola Palumbo and Laurent De Buyst.