Issue #11638: Adding test to ensure .tar.gz files can be generated by sdist command with unicode metadata, based on David Barnett's patch.
Issue #11638: Added tests to capture failures in make_tarball with various unicode strings.
Following fix for Issue #13639, these tests now pass.
diff --git a/Misc/NEWS b/Misc/NEWS
index 6a0c0e2..4f921a9 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -9,6 +9,9 @@
 Core and Builtins
 -----------------
 
+- Issue #11638: Unicode strings in 'name' and 'version' no longer cause
+  UnicodeDecodeErrors.
+
 - Fix the fix for issue #12149: it was incorrect, although it had the side
   effect of appearing to resolve the issue.  Thanks to Mark Shannon for
   noticing.