Apply the change suggested by PJE for issue 7250.  Unfortunately, we couldn't
come up with a unit test. :(
diff --git a/Misc/NEWS b/Misc/NEWS
index a918937..a7b724f 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -74,6 +74,9 @@
 Library
 -------
 
+- Issue #7250: Fix info leak of os.environ across multi-run uses of
+  wsgiref.handlers.CGIHandler.
+
 - Issue #1729305: Fix doctest to handle encode error with "backslashreplace".
 
 - Issue #691291: codecs.open() should not convert end of lines on reading and