[Bug 196] ch5-kernel make mrproper explanation

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@1512 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter01/changelog.xml

@@ -24,6 +24,9 @@
 
 <itemizedlist>
 
+<listitem><para>January 30th, 2002 [markh]: Chapter 5: Enhanced the make
+mrproper explanation.</para></listitem>
+
 <listitem><para>January 30th, 2002 [marcheerdink]: Chapters 5+6: Removed
 the --libexecdir flag from fileutils' configure options.</para></listitem>
 

chapter05/kernel-exp.xml

@@ -2,7 +2,10 @@
 <title>Command explanations</title>
 
 <para><userinput>make mrproper:</userinput> This will ensure that the kernel
-tree is absolutely clean.</para>
+tree is absolutely clean.  We do this because the kernel team recommend
+that this is done prior to <emphasis>each</emphasis> kernel compilation,
+and that we shouldn't rely on the source tree being automatically clean
+after untarring.</para>
 
 <para><userinput>yes "" | make config:</userinput> This runs make config and
 answers with the default answer to every question the config script asks