added <screen> tags to the makedev generic/nopty options

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@1356 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter06/makedev-inst.xml

@@ -14,10 +14,10 @@ chmod 754 MAKEDEV</userinput></screen></para>
 can run one of two commands:</para>
 
 <para>If you do not intend to use devpts, run:</para>
-<para><userinput>./MAKEDEV -v generic</userinput></para>
+<para><screen><userinput>./MAKEDEV -v generic</userinput></screen></para>
 
 <para>If you do intend to use devpts, then run:</para>
-<para><userinput>./MAKEDEV -v generic-nopty</userinput></para>
+<para><screen><userinput>./MAKEDEV -v generic-nopty</userinput></screen></para>
 
 <para>Note that if you aren't sure, it's best to use 
 the <userinput>./MAKEDEV -v generic</userinput> command as this will