Bug#515580: release-notes: Upgrade notes should mention the keyring update from vol atile before switching to lenny

[Duffy DaC <duffydac@gmail.com>]

Package: release-notes
Severity: normal

*** Please type your report below this line ***
Following the release notes to upgrade etch release to lenny, you must
update the debian keyring to include te lenny key while you are still in
etch. This is not mentioned.

-- System Information:
Debian Release: 4.0
  APT prefers stable
  APT policy: (990, 'stable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-6-686
Locale: LANG=it_IT, LC_CTYPE=it_IT (charmap=ISO-8859-1)