The method explained in the handbook for fixing the linux kernel release doesn't work. emerge -puv gentoo-sources will still show the update.
The proper way is like this:
~% grep gentoo-sources /etc/portage/package.*
Please fix this in the handbook.
You're doing something weird with your package.* files. You're supposed to do something like >sys-kernel/gentoo-sources-2.6.35-r9. Or better yet, fix package.keywords too, since that affects ~arch packages, not hardmasked packages. You're using the wrong files and using weird syntax.
Not a documentation bug; closing.
Whatever you say. It's not my problem anymore.