it removes the gnus and gnus manuals built into emacs, but now t-gnus
installs its info files with different pathnames to avoid confusing pkgsrc's
database.
uh, different.
It uses SEMI for its MIME support rather than the MIME stuff built into
regular Gnus. It's most important feechur is the printing of an annoyingly
long User-agent: header so that everyone can tell you are running an
obscure Gnus variant, and also that you're running it under NetBSD. Also
it comes with manuals in Japanese.