Documentation: link in /usr/share/doc/vlc/bugreport-howto.txt
Probably POSIX-only.
In /usr/share/doc/vlc/bugreport-howto.txt there is a link to http://www.videolan.org/support/bug-reporting.html
but the link should point to https://wiki.videolan.org/Report_bugs OR https://trac.videolan.org/vlc/ (or mention both)
The links suggested have more to do with bug reporting than the link which is currently in the file.