This is because in lucid, the files in /etc/update-motd.d/ are shipped by base-files, but are NOT marked as conffiles. They ARE conffiles in precise, but as their contents changed, you'll get a conffile prompt.
This is because in lucid, the files in /etc/update-motd.d/ are shipped by base-files, but are NOT marked as conffiles. They ARE conffiles in precise, but as their contents changed, you'll get a conffile prompt.