Disk labels in setup_harddisks

[Devlin]

Follows a patch, to update the documentation along with the ext[23] 
labeling.

--- README.disk_config.orig     Thu Jun 20 06:18:22 2002
+++ README.disk_config  Thu Jun 20 06:19:36 2002
@@ -86,6 +86,8 @@
       -m <blocks>  : Reserved blocks percentage for superuser
                      (only ext2/3 filesystem)
       -j                  : Create the filesystem with an ext3 journal
+     -L <label>          : Create a disk label
+                    (only ext2/3 filesystem)
       -c                  : Check for bad blocks
       ext2        : flag the partition as ext2 instead of auto in 
/etc/fstab
       ext3        : flag the partition as ext3 instead of auto in 
/etc/fstab