Update chapters/synchronous.tex

Co-authored-by: Henrik Tidefelt <henrikt@wolfram.com>

chapters/synchronous.tex

@@ -239,7 +239,7 @@ \subsection{Argument Restrictions (Component Expression)}\label{argument-restric
 is not possible for a general expression.
 
 The reason for restricting an input argument to be an evaluable expression is that the value of the input argument needs to be evaluated during translation, in order that clock analysis can be performed during translation.
-In some cases the text specifies a special handling of parameter expressions, in that case their values are not needed during translation.
+In cases when special handling of parameter expressions is specified, it is an indication that the values are not needed during translation.
 \end{nonnormative}
 
 \begin{example}