Added docs for (draft) pkgutil module.
diff --git a/Doc/lib/lib.tex b/Doc/lib/lib.tex
index 3511263..9f6f526 100644
--- a/Doc/lib/lib.tex
+++ b/Doc/lib/lib.tex
@@ -90,6 +90,7 @@
 \input{libmarshal}
 \input{libwarnings}
 \input{libimp}
+\input{libpkgutil}
 \input{libcode}
 \input{libcodeop}
 \input{libpprint}