typo fix (routing->routines)

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@3020 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

appendixa/gettext-desc.xml

@@ -83,7 +83,7 @@ applications shipped with gettext won't suffice (such as msgcomm, msgcmp,
 msgattrib and msgen).</para>
 
 <para><command>libgettextsrc</command> is a private library containing
-common routing used by the various gettext programs. They're not meant for
+common routines used by the various gettext programs. They're not meant for
 general use.</para>
 
 </sect2>