Add a version annotation for splitdrive(); old, but as long as I managed
to end up with the information, it is better recorded than lost.
diff --git a/Doc/lib/libposixpath.tex b/Doc/lib/libposixpath.tex
index f585f41..658b4ea 100644
--- a/Doc/lib/libposixpath.tex
+++ b/Doc/lib/libposixpath.tex
@@ -181,6 +181,7 @@
empty string. On systems which do not use drive specifications,
\var{drive} will always be the empty string. In all cases,
\code{\var{drive} + \var{tail}} will be the same as \var{path}.
+\versionadded{1.3}
\end{funcdesc}
\begin{funcdesc}{splitext}{path}