Branch b1_6

Add release note re: lustre-ldiskfs RPM.

lustre/ChangeLog

@@ -12,6 +12,10 @@ tbd         Cluster File Systems, Inc. <info@clusterfs.com>
         using patchless RHEL 4 clients with this or any earlier release.
        * Recommended e2fsprogs version: 1.39.cfs8
        * Note that reiserfs quotas are disabled on SLES 10 in this kernel.
+       * Starting with this release, the ldiskfs backing filesystem required
+        by Lustre is now in its own package, lustre-ldiskfs.  This package
+        so be installed.  It is versioned separately from Lustre and
+        may be released separately in future.
 
 Severity   : normal
 Frequency  : only for sles10