Clean up some whitespace in some code listings in chapter 'Statements'

chapters/statements.tex

@@ -143,7 +143,7 @@ \subsubsection{Assignments from Called Functions with Multiple Results}\doublela
 The function \lstinline!f! called below has three results and two inputs:
 \begin{lstlisting}[language=modelica]
 (a, b, c) := f(1.0, 2.0);
-(x[1], x[2], x[1]) := f(3,4);
+(x[1], x[2], x[1]) := f(3, 4);
 \end{lstlisting}
 In the second example above \lstinline!x[1]! is assigned twice: first with the first output, and then with the third output.  For that case the following will give the same result:
 \begin{lstlisting}[language=modelica]
@@ -248,11 +248,11 @@ \subsubsection{Implicit Iteration Ranges}\doublelabel{implicit-iteration-ranges}
 \end{lstlisting}
 
 \begin{lstlisting}[language=modelica]
-type FourEnums=enumeration(one,two,three,four);
-  Real xe[FourEnums]= x;
-  Real xsquared3[FourEnums]={xe[i]*xe[i] for i};
-  Real xsquared4[FourEnums]={xe[i]*xe[i] for i in FourEnums};
-  Real xsquared5[FourEnums]={x[i]*x[i] for  i};
+type FourEnums = enumeration(one, two, three, four);
+Real xe[FourEnums] = x;
+Real xsquared3[FourEnums] = {xe[i] * xe[i] for i};
+Real xsquared4[FourEnums] = {xe[i] * xe[i] for i in FourEnums};
+Real xsquared5[FourEnums] = {x[i] * x[i] for i};
 \end{lstlisting}
 \end{example}
 
@@ -340,12 +340,12 @@ \subsection{Break-Statement}\doublelabel{break-statement}
   input Integer val;
   output Integer index;
 algorithm
-  index := size(x,1);
+  index := size(x, 1);
   while index >= 1 loop
-    if x[index]== val then
+    if x[index] == val then
       break;
-      else
-      index := index -- 1;
+    else
+      index := index - 1;
     end if;
   end while;
 end findValue;