Added example use of pack_list() to help explain the pack_item
parameter. Lack of clarity reported by Matthew Gallagher
<hew@hons.cs.usyd.edu.au>.
diff --git a/Doc/lib/libxdrlib.tex b/Doc/lib/libxdrlib.tex
index 3565eb7..57329d7 100644
--- a/Doc/lib/libxdrlib.tex
+++ b/Doc/lib/libxdrlib.tex
@@ -95,6 +95,15 @@
from the list. \var{pack_item} is the function that is called to pack
the individual item. At the end of the list, an unsigned integer
\code{0} is packed.
+
+For example, to pack a list of integers, the code might appear like
+this:
+
+\begin{verbatim}
+import xdrlib
+p = xdrlib.Packer()
+p.pack_list([1, 2, 3], p.pack_int)
+\end{verbatim}
\end{methoddesc}
\begin{methoddesc}[Packer]{pack_farray}{n, array, pack_item}