Issue #10756: atexit normalizes the exception before displaying it. Patch by
Andreas Stührk.

Backport a fix already applied to Python 3.2+ (4a82be47a948 + 5060a92a8597).
diff --git a/Misc/NEWS b/Misc/NEWS
index c41e475..521a2a0 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -72,6 +72,9 @@
 Library
 -------
 
+- Issue #10756: atexit normalizes the exception before displaying it. Patch by
+  Andreas Stührk.
+
 - Issue #8650: Make zlib module 64-bit clean. compress(), decompress() and
   their incremental counterparts now raise OverflowError if given an input
   larger than 4GB, instead of silently truncating the input and returning