app-portage/elogviewer-0.6.* was removed from the tree. For some strange reasons, 0.5.2 was kept in tree. Now emerge wants to downgrade from 0.6.2-r2 (which worked fine for me) to 0.5.2-r2 (which lacks features and is full of bugs, e.g. silently drops parts of the logs it is expected to display). I can't use elogviewer-2.x (no Qt at all here...), and elogviewer-0.6 is the only working gtk-based elog reader I'm aware of.
OK, I was not aware of 0.5.2 had so many bugs. It was the only other version marked stable is why I left it.
The ebuild has been restored. Sorry about the inconvenience. The ebuild does need to be updated to a newer EAPI and python eclass. I will close the bug when that work is completed.
I have added app-portage/elogviewer-0.6.2-r3 which bumps the EAPI to 5 and converts the ebuild from the python eclass to the python-r1 eclass. I will be removing the -r2 ebuild in a few days.