Fix typo and mark-up; shorten text
diff --git a/Doc/whatsnew/whatsnew24.tex b/Doc/whatsnew/whatsnew24.tex
index 3be6707..a52bda9 100644
--- a/Doc/whatsnew/whatsnew24.tex
+++ b/Doc/whatsnew/whatsnew24.tex
@@ -306,11 +306,9 @@
objN)}, constructs tuples from a variable length argument list of
Python objects.
- \item A new function, \function{PyDict_Contains(d, k)}, implements
- fast dictionary lookups without masking exceptions raised during
- the loop-up process (compare with \function{PySequence_Contains()}
- which is slower or \function{PyMapping_HasKey()} which clears all
- exceptions).
+ \item A new function, \cfunction{PyDict_Contains(d, k)}, implements
+ fast dictionary lookups without masking exceptions raised during the
+ look-up process.
\end{itemize}