Adjusted to use the new module synopsis support macros.
diff --git a/Doc/lib/librexec.tex b/Doc/lib/librexec.tex
index 8778ae1..8881c93 100644
--- a/Doc/lib/librexec.tex
+++ b/Doc/lib/librexec.tex
@@ -1,6 +1,8 @@
 \section{Standard Module \module{rexec}}
-\label{module-rexec}
-\stmodindex{rexec}
+\declaremodule{standard}{rexec}
+
+\modulesynopsis{Basic restricted execution framework.}
+
 
 
 This module contains the \class{RExec} class, which supports