The latest open version of Bittorrent is 5.2.2. Please, update portage. Reproducible: Always Steps to Reproduce:
+*bittorrent-5.2.2 (04 Feb 2009) + + 04 Feb 2009; Patrick Lauer <patrick@gentoo.org> +bittorrent-5.2.2.ebuild: + Bump to 5.2.2. SRC_URI fix. Closes #257216