Fix check docdir

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@11597 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter06/check.xml

@@ -42,7 +42,8 @@
 
     <para>准备安装 Check：</para>
 
-<screen><userinput remap="configure">./configure --prefix=/usr</userinput></screen>
+<screen><userinput remap="configure">./configure --prefix=/usr
+            --docdir=/usr/share/doc/check-&check-version;</userinput></screen>
 
     <para>构建该软件包：</para>