Adjusted to use the new module synopsis support macros.
diff --git a/Doc/lib/libbase64.tex b/Doc/lib/libbase64.tex
index a9c3bd1..2d34e1d 100644
--- a/Doc/lib/libbase64.tex
+++ b/Doc/lib/libbase64.tex
@@ -1,6 +1,8 @@
 \section{Standard Module \module{base64}}
-\label{module-base64}
-\stmodindex{base64}
+\declaremodule{standard}{base64}
+
+\modulesynopsis{Encode/decode binary files using the MIME base64 encoding.}
+
 \indexii{base64}{encoding}
 \index{MIME!base64 encoding}