More \exception fixes.
diff --git a/Doc/lib/libitertools.tex b/Doc/lib/libitertools.tex
index 421d647..904a19a 100644
--- a/Doc/lib/libitertools.tex
+++ b/Doc/lib/libitertools.tex
@@ -281,7 +281,8 @@
   \end{verbatim}
 
   \versionchanged[When no iterables are specified, returns a zero length
-                  iterator instead of raising a TypeError exception]{2.4}  
+                  iterator instead of raising a \exception{TypeError}
+		  exception]{2.4}
 \end{funcdesc}
 
 \begin{funcdesc}{repeat}{object\optional{, times}}