changed entity call from &manpages-version; to &man-pages-version;

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@696 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter06/manpages-exp.xml

@@ -2,7 +2,7 @@
 <title>Command explanations</title>
 
 <para>
-<userinput>patch -Np1 -i ../man-pages-&manpages-version;.patch</userinput>:
+<userinput>patch -Np1 -i ../man-pages-&man-pages-version;.patch</userinput>:
 We patch the man-pages package to include three important missing pages:
 <filename>ldd</filename>'s, and <filename>ld.so</filename>'s
 </para>