Added hyphen between util and linux

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@747 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter06/utillinux.xml

@@ -1,5 +1,5 @@
 <sect1 id="ch06-utillinux">
-<title>Installing Utillinux</title>
+<title>Installing Util-linux</title>
 
 &c6-utillinux-inst;
 &c6-utillinux-exp;