* high() gives upper bound, not lower bound

docs/ref.tex

@@ -5806,7 +5806,7 @@ Function High (Type identifier or variable reference) : Ordinal;
 \Description
  The return value of \var{High} depends on it's argument:
 \begin{enumerate}
-\item If the argument is an ordinal type, \var{High} returns the lowest
+\item If the argument is an ordinal type, \var{High} returns the highest
  value in the range of the given ordinal type.
 \item If the argument is an array type or an array type variable then
 \var{High} returns the highest possible value of it's index.