Some cleanup in the docs.
diff --git a/Doc/library/thread.rst b/Doc/library/thread.rst
index ca70403..afe8cbe 100644
--- a/Doc/library/thread.rst
+++ b/Doc/library/thread.rst
@@ -65,12 +65,13 @@
Raise the :exc:`SystemExit` exception. When not caught, this will cause the
thread to exit silently.
-.. % \begin{funcdesc}{exit_prog}{status}
-.. % Exit all threads and report the value of the integer argument
-.. % \var{status} as the exit status of the entire program.
-.. % \strong{Caveat:} code in pending \keyword{finally} clauses, in this thread
-.. % or in other threads, is not executed.
-.. % \end{funcdesc}
+..
+ function:: exit_prog(status)
+
+ Exit all threads and report the value of the integer argument
+ *status* as the exit status of the entire program.
+ **Caveat:** code in pending :keyword:`finally` clauses, in this thread
+ or in other threads, is not executed.
.. function:: allocate_lock()