Use verbose ln.

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@10716 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter06/flex.xml

@@ -74,7 +74,7 @@
     runs <filename>flex</filename> in <command>lex</command> emulation
     mode:</para>
 
-<screen><userinput remap="install">ln -s flex /usr/bin/lex</userinput></screen>
+<screen><userinput remap="install">ln -sv flex /usr/bin/lex</userinput></screen>
 
   </sect2>