More \exception fixes.
diff --git a/Doc/lib/libre.tex b/Doc/lib/libre.tex
index 0fd5796..1404e09 100644
--- a/Doc/lib/libre.tex
+++ b/Doc/lib/libre.tex
@@ -931,7 +931,7 @@
\leftline{\strong{Avoiding recursion}}
If you create regular expressions that require the engine to perform a
-lot of recursion, you may encounter a RuntimeError exception with
+lot of recursion, you may encounter a \exception{RuntimeError} exception with
the message \code{maximum recursion limit} exceeded. For example,
\begin{verbatim}