Turn too long \lstinline into lstlisting

chapters/synchronous.tex

@@ -499,7 +499,16 @@ \section{Clock Constructors}\label{clock-constructors}
 \item
   If-expressions of clocks in equations.
   \begin{example}
-  \lstinline!Clock c2 = if f>0 then subSample(c1, f) elseif f<0 then superSample(c1, f) else c1!
+\begin{lstlisting}[language=modelica]
+Clock c2 =
+  if f > 0 then
+    subSample(c1, f)
+  elseif f < 0 then
+    superSample(c1, f)
+  else
+    c1;
+\end{lstlisting}
+  \lstinline!!
   \end{example}
 \item
   Clock variables can be declared in models, blocks, connectors, and