No USE flags to test. The program isn't very verbose when the authentication fails but seems to work correctly. It was marked as testing in Bug #80180 10 months ago. The last Bug #86678 was trivial and 5 months ago. Ebuild was originally added 21 months ago. Stable here on AMD64.
Created attachment 72552 [details] emerge --info
Marked stable. Thanks for testing, RiverRat.