An almost standard version bump - old ebuild works. One thing, though: whoever released it forgot to clean it - in the archive there are all temporary files from building, object files and executable. Perhaps somebody should bother upstream about it. Also, I checked and emake DESTDIR="${D}" install seems to work.
I do not use lm_sensors, so I was not able to thoroughly test it. However, it did compile and run fine, albeit displaying nothing, probably because I have not set up lm_sensors. Anyhow, I believe you that it works, so I went ahead and committed it. Please do report back if I screwed something up. :D Thanks for the bug report. Closing FIXED.