Nits. Reference to signal module becomes a hyperlink.
diff --git a/Doc/lib/libthread.tex b/Doc/lib/libthread.tex
index 777c76f..dab7c89 100644
--- a/Doc/lib/libthread.tex
+++ b/Doc/lib/libthread.tex
@@ -1,7 +1,7 @@
\section{\module{thread} ---
- Multiple threads of control.}
-\declaremodule{builtin}{thread}
+ Multiple threads of control}
+\declaremodule{builtin}{thread}
\modulesynopsis{Create multiple threads of control within one interpreter.}
@@ -31,7 +31,7 @@
This is the type of lock objects.
\end{datadesc}
-\begin{funcdesc}{start_new_thread}{function, args\optional{kwargs}}
+\begin{funcdesc}{start_new_thread}{function, args\optional{, kwargs}}
Start a new thread. The thread executes the function \var{function}
with the argument list \var{args} (which must be a tuple). The
optional \var{kwargs} argument specifies a dictionary of keyword
@@ -54,7 +54,7 @@
%\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 \code{finally} clauses, in this thread
+%\strong{Caveat:} code in pending \keyword{finally} clauses, in this thread
%or in other threads, is not executed.
%\end{funcdesc}
@@ -103,7 +103,7 @@
\item
Threads interact strangely with interrupts: the
\exception{KeyboardInterrupt} exception will be received by an
-arbitrary thread. (When the \module{signal}\refbimodindex{signal}
+arbitrary thread. (When the \refmodule{signal}\refbimodindex{signal}
module is available, interrupts always go to the main thread.)
\item