Appendices/Dependencies: Add debuginfod as an optional dependency for binutils.

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@11854 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

appendices/dependencies.xml

@@ -285,7 +285,7 @@
         <segtitle>&external;</segtitle>
 
         <seglistitem>
-          <seg>None</seg>
+          <seg>Debuginfod</seg>
         </seglistitem>
       </segmentedlist>