Added another two nodump attributes.

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@6982 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter06/strippingagain.xml

@@ -25,11 +25,11 @@ unsure whether the user entered chroot with the command given in
 <xref linkend="ch-system-chroot" role=","/> first exit from
 chroot:</para>
 
-<screen><userinput>logout</userinput></screen>
+<screen role="nodump">><userinput>logout</userinput></screen>
 
 <para>Then reenter it with:</para>
 
-<screen><userinput>chroot $LFS /tools/bin/env -i \
+<screen role="nodump">><userinput>chroot $LFS /tools/bin/env -i \
     HOME=/root TERM=$TERM PS1='\u:\w\$ ' \
     PATH=/bin:/usr/bin:/sbin:/usr/sbin \
     /tools/bin/bash --login</userinput></screen>