environment: decorate a remaining lfs username

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@11974 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter04/settingenviron.xml

@@ -168,7 +168,8 @@ EOF</userinput></screen>
 
      <screen role="nodump"><userinput>[ ! -e /etc/bash.bashrc ] || mv -v /etc/bash.bashrc /etc/bash.bashrc.NOUSE</userinput></screen> 
 
-     <para>After use of the lfs user is finished at the beginning of <xref
+     <para>After use of the <systemitem class="username">lfs</systemitem>
+     user is finished at the beginning of <xref
      linkend="chapter-chroot-temporary-tools"/>, you can restore
 	 <filename>/etc/bash.bashrc</filename> (if desired).</para>