The tag is present in Lintian version 2.109.6. That is the most recent version we know about.
Homepage field for this package points to an area
within the *.debian.org infrastructure that has been deprecated.
After 1st May 2018, the Alioth service became read-only in May 2018. Packages should migrate to website hosting on https://salsa.debian.org.
For further information about salsa.debian.org, including how to add HTTP redirects from alioth, please consult the Debian Wiki.
Please refer to https://lists.debian.org/debian-devel-announce/2017/08/msg00008.html and https://wiki.debian.org/Salsa for details.