do not use $LFS in chapter08 (looks like a command pasted from chapter 6)

It's harmless since the LFS variable is not set, but ugly!

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@11956 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter08/bzip2.xml

@@ -90,7 +90,7 @@ make clean</userinput></screen>
 
 <screen><userinput remap="install">cp -v bzip2-shared /bin/bzip2
 cp -av libbz2.so* /lib
-ln -sv ../../lib/libbz2.so.1.0 $LFS/usr/lib/libbz2.so
+ln -sv ../../lib/libbz2.so.1.0 /usr/lib/libbz2.so
 rm -v /usr/bin/{bunzip2,bzcat,bzip2}
 ln -sv bzip2 /bin/bunzip2
 ln -sv bzip2 /bin/bzcat</userinput></screen>