Add a NEWS entry for issue2221.
Also don't flush stdout on each call to exec() or eval().
Only interactive input really needs it.
diff --git a/Misc/NEWS b/Misc/NEWS
index beed5cb..40de496 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,10 @@
Core and Builtins
-----------------
+- Issue #2221: Corrected a SystemError "error return without exception set",
+ when the code executed by exec() raises an exception, and sys.stdout.flush()
+ also raises an error.
+
- Bug #2565: The repr() of type objects now calls them 'class',
not 'type' - whether they are builtin types or not.