Remove space added for source code readability

chapters/equations.tex

@@ -832,7 +832,7 @@ \section{Initialization, initial equation, and initial algorithm}\doublelabel{in
 variables) is equal.  Often, this is a nonlinear system of equations and therefore it may be necessary to provide appropriate guess values (i.e., \lstinline!start! values and
 \lstinline!fixed = false!) in order to compute a solution numerically.
 
-It may be difficult for a user to figure out how many initial equations have to be added, especially if the system has a higher index.  A tool may add or remove initial equations
+It may be difficult for a user to figure out how many initial equations have to be added, especially if the system has a higher index. A tool may add or remove initial equations
 automatically such that the resulting system is structurally nonsingular.  In these cases diagnostics are appropriate since the result is not unique and may not be what the user
 expects.  A missing initial value of a discrete variable which does not influence the simulation result, may be automatically set to the \lstinline!start! value or its default without
 informing the user.  For example, variables assigned in a when-clause which are not accessed outside of the when-clause and where \lstinline!pre! is not explicitly