Although I'm not on the security team, I've reviewed your debdiff and there still seem to be a couple of problems, both of which can be picked up from https://wiki.ubuntu.com/SecurityTeam/UpdatePreparation#Update_the_packaging
*) The first, and less important, is the version. From that table it should be 1.4.12.1+dfsg-3ubuntu0.1
*) The second is the distro target, which should be "lucid-security" rather than "lucid"
Finally, it should have the maintainer field set properly. There's a tool "update-maintainer" in the ubuntu-dev-tools package which should do this automatically for you. Did that not work?
Although I'm not on the security team, I've reviewed your debdiff and there still seem to be a couple of problems, both of which can be picked up from https:/ /wiki.ubuntu. com/SecurityTea m/UpdatePrepara tion#Update_ the_packaging 1+dfsg- 3ubuntu0. 1
*) The first, and less important, is the version. From that table it should be 1.4.12.
*) The second is the distro target, which should be "lucid-security" rather than "lucid"
Finally, it should have the maintainer field set properly. There's a tool "update-maintainer" in the ubuntu-dev-tools package which should do this automatically for you. Did that not work?