DOC: Correct signed long mangling and C++ variables

Author: thewtex

SoftwareGuide/Latex/DevelopmentGuidelines/CreateAModule.tex

@@ -630,8 +630,8 @@ \subsubsection{Wrapping Variables}
 \textbf{Mangling} & ITKM\_SI & SI \\ \hline
 \textbf{C++ Type} & ITKT\_SI & signed integer \\ \hline
 \\ \hline
-\textbf{Mangling} & ITKM\_UL & UL \\ \hline
-\textbf{C++ Type} & ITKT\_UL & signed long \\ \hline
+\textbf{Mangling} & ITKM\_SL & SL \\ \hline
+\textbf{C++ Type} & ITKT\_SL & signed long \\ \hline
 \\ \hline
 \textbf{Mangling} & ITKM\_F & F \\ \hline
 \textbf{C++ Type} & ITKT\_F & float \\ \hline