Clean up 'hold(u)'

chapters/synchronous.tex

@@ -599,12 +599,9 @@ \subsection{Base-clock conversion operators}\doublelabel{base-clock-conversion-o
 \end{nonnormative*}
 \\ \hline
 \lstinline!hold(u)! &
-Input argument u is a clocked Component Expression (see \autoref{argument-restrictions-component-expression})
-or a parameter expression. The operator returns a piecewise constant
-signal of the same type of u. When the clock of u ticks, the operator
-returns u and otherwise returns the value of u from the last clock
-activation. Before the first clock activation of u, the operator returns
-the start value of u, see \autoref{initialization-of-clocked-partitions}.
+Input argument \lstinline!u! is a clocked Component Expression (see \autoref{argument-restrictions-component-expression}) or a parameter expression.  The operator returns a piecewise constant
+signal of the same type of \lstinline!u!.  When the clock of \lstinline!u! ticks, the operator returns \lstinline!u! and otherwise returns the value of \lstinline!u! from the last clock activation.
+Before the first clock activation of \lstinline!u!, the operator returns the start value of \lstinline!u!, see \autoref{initialization-of-clocked-partitions}.
 \par
 \begin{nonnormative*}
 Since the input argument is not defined before the first tick of the clock of u, the restriction is present, that it must be a Component Expression (or a parameter expression),