Issue #13444: When stdout has been closed explicitly, we should not attempt to flush it at shutdown and print an error.
This also adds a test for issue #5319, whose resolution introduced the issue.
diff --git a/Misc/NEWS b/Misc/NEWS
index fba2c3d..eaadaaf 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -83,6 +83,9 @@
Library
-------
+- Issue #13444: When stdout has been closed explicitly, we should not attempt
+ to flush it at shutdown and print an error.
+
- Issue #12856: Ensure child processes do not inherit the parent's random
seed for filename generation in the tempfile module. Patch by Brian
Harring.