HLFS master.sh, copy kernel config file to /sources. Added text to config file

HLFS/config

@@ -16,7 +16,8 @@ GRSECURITY_HOST=0
 #--- Location of fstab file (if empty, a template is created)
 FSTAB=
 
-#--- Location of kernel config file (if the kernel is to be compiled)
+#--- Fully qualified path to a kernel config file 
+# If no config file is  specified the kernel is NOT compiled
 CONFIG=
 
 #--- Book's sources directory

HLFS/master.sh

@@ -427,6 +427,7 @@ chapter7_Makefiles() {       # Create a bootable system.. kernel, bootscripts..e
       *kernel)
           # If no .config file is supplied, the kernel build is skipped
         [[ -z $CONFIG ]] && continue
+	cp $CONFIG $BUILDDIR/sources/kernel-config
          ;;
     esac