Add the getpass module.

Doc/lib/lib.tex

@@ -121,6 +121,7 @@ add new extensions to Python and how to embed it in other applications.
 \input{liballos}		% Generic Operating System Services
 \input{libos}
 \input{libtime}
+\input{libgetpass}
 \input{libgetopt}
 \input{libtempfile}
 \input{liberrno}