Add some minor text tweaks

was r11510.

chapter05/util-linux.xml

@@ -131,4 +131,12 @@
 
   </sect2>
 
+  <sect2 role="content">
+    <title/>
+
+    <para>Details on this package are located in
+    <xref linkend="contents-utillinux" role="."/></para>
+
+  </sect2>
+
 </sect1>

chapter06/findutils.xml

@@ -49,7 +49,7 @@
 
 <screen><userinput remap="pre">sed -i 's/test-lock..EXEEXT.//' tests/Makefile.in</userinput></screen>
 
-    <para>然后，进行 glibc-2.28 要求的一些修补：</para>
+    <para>然后，进行 glibc-2.28 和更高版本要求的一些修补：</para>
 
 <screen><userinput remap="pre">sed -i 's/IO_ftrylockfile/IO_EOF_SEEN/' gl/lib/*.c
 sed -i '/unistd/a #include &lt;sys/sysmacros.h&gt;' gl/lib/mountlist.c