Added libmagic to index.

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@2983 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

appendixb/appendixb.xml

@@ -290,6 +290,7 @@ to which it belongs.</para>
 <listitem><para>libieee : <xref linkend="aa-glibc"/></para></listitem>
 <listitem><para>libltdl* : <xref linkend="aa-libtool"/></para></listitem>
 <listitem><para>libm : <xref linkend="aa-glibc"/></para></listitem>
+<listitem><para>libmagic : <xref linkend="aa-file"/></para></listitem>
 <listitem><para>libmcheck : <xref linkend="aa-glibc"/></para></listitem>
 <listitem><para>libmemusage : <xref linkend="aa-glibc"/></para></listitem>
 <listitem><para>libmenu : <xref linkend="aa-ncurses"/></para></listitem>