Added entry for dl module.

Doc/Makefile.deps

@@ -195,6 +195,7 @@ LIBFILES= ../lib/lib.tex \
 	../lib/libchunk.tex \
 	../lib/libcodeop.tex \
 	../lib/libcurses.tex \
+	../lib/libdl.tex \
 	../lib/libmutex.tex \
 	../lib/libnis.tex \
 	../lib/libpipes.tex \

Doc/lib/lib.tex

@@ -168,6 +168,7 @@ add new extensions to Python and how to embed it in other applications.
 \input{libpwd}
 \input{libgrp}
 \input{libcrypt}
+\input{libdl}
 \input{libdbm}
 \input{libgdbm}
 \input{libtermios}