Fix false indention in code listings

chapters/classes.tex

@@ -455,7 +455,7 @@ \subsection{Component Variability Prefixes}\label{component-variability-prefixes
   if state then // code which is removed during symbolic
     der(v) = a; // processing, if state=false
     der(r) = v;
-   end if;
+  end if;
 end Inertia;
 \end{lstlisting}
 
@@ -464,7 +464,7 @@ \subsection{Component Variability Prefixes}\label{component-variability-prefixes
 changed after they have been given a value. It can be used to represent
 mathematical constants, e.g.
 \begin{lstlisting}[language=modelica]
-final constant Real PI=4*atan(1);
+final constant Real PI = 4*atan(1);
 \end{lstlisting}
 
 There are no continuous-time \lstinline!Boolean!, \lstinline!Integer! or \lstinline!String!
@@ -877,7 +877,7 @@ \section{Specialized Classes}\label{specialized-classes}
   algorithm
      result := Complex(re=c1.re*c2.re - c1.im*c2.im,
                       im=c1.re*c2.im + c1.im*c2.re);
-   end '*';
+  end '*';
 end Complex;
 record MyComplex
   extends Complex; // Error; extending from enclosing scope.
@@ -1171,7 +1171,7 @@ \section{Balanced Models}\label{balanced-models}
 import Modelica.Units.SI;
 
 partial model BaseProperties
-    "Interface of medium model for all type of media"
+  "Interface of medium model for all type of media"
   parameter Boolean preferredStates = false;
   constant Integer nXi "Number of independent mass fractions";
   InputAbsolutePressure     p;
@@ -1693,16 +1693,16 @@ \subsubsection{StateSelect}\label{stateselect}
 
 \begin{lstlisting}[language=modelica]
 type StateSelect = enumeration(
- never "Do not use as state at all.",
- avoid "Use as state, if it cannot be avoided (but only if variable appears
-         differentiated and no other potential state with attribute
-         default, prefer, or always can be selected).",
- default "Use as state if appropriate, but only if variable appears
-          differentiated.",
- prefer "Prefer it as state over those having the default value
-      (also variables can be selected, which do not appear
-      differentiated).",
-always "Do use it as a state."
+  never   "Do not use as state at all.",
+  avoid   "Use as state, if it cannot be avoided (but only if variable appears
+           differentiated and no other potential state with attribute
+           default, prefer, or always can be selected).",
+  default "Use as state if appropriate, but only if variable appears
+           differentiated.",
+  prefer  "Prefer it as state over those having the default value
+           (also variables can be selected, which do not appear
+           differentiated).",
+  always  "Do use it as a state."
 );
 \end{lstlisting}
 

chapters/connectors.tex

@@ -174,7 +174,7 @@ \subsection{Expandable Connectors}\label{expandable-connectors}
 end EngineBus;
 
 block Sensor
- RealOutput speed;
+  RealOutput speed;
 end Sensor;
 
 model Engine