Restore autoconf to Chapter 3

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@10513 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter03/packages.xml

@@ -32,6 +32,15 @@
       </listitem>
     </varlistentry>
 
+    <varlistentry>
+      <term>Autoconf (&autoconf-version;) - <token>&autoconf-size;</token>:</term>
+      <listitem>
+        <para>Home page: <ulink url="&autoconf-home;"/></para>
+        <para>Download: <ulink url="&autoconf-url;"/></para>
+        <para>MD5 sum: <literal>&autoconf-md5;</literal></para>
+      </listitem>
+    </varlistentry>
+
     <varlistentry>
       <term>Automake (&automake-version;) - <token>&automake-size;</token>:</term>
       <listitem>