Fix-up attribution per IRC discussion with GPolo.
diff --git a/Doc/whatsnew/3.1.rst b/Doc/whatsnew/3.1.rst
index 951e678..f4ffd76 100644
--- a/Doc/whatsnew/3.1.rst
+++ b/Doc/whatsnew/3.1.rst
@@ -179,8 +179,7 @@
The basic idea of ttk is to separate, to the extent possible, the code
implementing a widget's behavior from the code implementing its appearance.
- (Contributed by Kevin Walzer and Guilherme Polo; :issue:`2618` and
- :issue:`2983`.)
+ (Contributed by Guilherme Polo; :issue:`2983`.)
* The :class:`gzip.GzipFile` and :class:`bz2.BZ2File` classes now support
the context manager protocol::