Fix a bug in traceback.format_exception_only() that led to an error
being raised when print_exc() was called without an exception set.
In version 2.4, this printed "None", restored that behavior.
diff --git a/Misc/NEWS b/Misc/NEWS
index ae14e8f..c1a3a6c 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -56,6 +56,10 @@
Library
-------
+- Fix a bug in traceback.format_exception_only() that led to an error
+ being raised when print_exc() was called without an exception set.
+ In version 2.4, this printed "None", restored that behavior.
+
- Make webbrowser.BackgroundBrowser usable in Windows (it wasn't because
the close_fds arg to subprocess.Popen is not supported).