Another fix.

Doc/lib/libre.tex

@@ -812,7 +812,7 @@ used for groups that did not participate in the match; it defaults to
 \end{methoddesc}
 
 \begin{methoddesc}[MatchObject]{start}{\optional{group}}
-\methodline{end}{\optional{group}}
+\methodline[MatchObject]{end}{\optional{group}}
 Return the indices of the start and end of the substring
 matched by \var{group}; \var{group} defaults to zero (meaning the whole
 matched substring).