doc/syntax.tex: Put the `arbitrary code execution' warning in a box.

diff --git a/doc/syntax.tex b/doc/syntax.tex
index de85ce8..336f4bc 100644 (file)
--- a/doc/syntax.tex
+++ b/doc/syntax.tex
@@ -311,12 +311,13 @@ depends on Common Lisp.)
 
 The @<s-expression> is evaluated immediately.  It can do anything it likes.
 
-\textbf{Warning!}  This means that hostile Sod modules are a security hazard.
-Lisp code can read and write files, start other programs, and make network
-connections.  Don't install Sod modules from sources that you don't
-trust.\footnote{%
-  Presumably you were going to run the corresponding code at some point, so
-  this isn't as unusually scary as it sounds.  But please be careful.} %
+\begin{boxy}[Warning!]
+  This means that hostile Sod modules are a security hazard.  Lisp code can
+  read and write files, start other programs, and make network connections.
+  Don't install Sod modules from sources that you don't trust.\footnote{%
+    Presumably you were going to run the corresponding code at some point, so
+    this isn't as unusually scary as it sounds.  But please be careful.} %
+\end{boxy}
 
 \subsubsection{Declaring type names} \label{sec:syntax.defs.typename}