Added \platform annotations.
diff --git a/Doc/lib/libgrp.tex b/Doc/lib/libgrp.tex
index 4d1ab80..5095806 100644
--- a/Doc/lib/libgrp.tex
+++ b/Doc/lib/libgrp.tex
@@ -1,10 +1,11 @@
\section{\module{grp} ---
- The group database.}
+ The group database}
+
\declaremodule{builtin}{grp}
-
-
+ \platform{UNIX}
\modulesynopsis{The group database (\function{getgrnam()} and friends).}
+
This module provides access to the \UNIX{} group database.
It is available on all \UNIX{} versions.
@@ -18,7 +19,7 @@
list is a list of strings.
(Note that most users are not explicitly listed as members of the
group they are in according to the password database.)
-A \code{KeyError} exception is raised if the entry asked for cannot be found.
+\exception{KeyError} is raised if the entry asked for cannot be found.
It defines the following items: