libopensync-0.22.tar.bz2?rev=&format=raw ---> What does it mean?

[E. J. Cerejo]

Trying to upgrade libopensync022 and I get this error even though 
libopensync-0.22.tar.bz2 tarball is in /usr/ports/distfiles.

=> libopensync-0.22.tar.bz2?rev=&format=raw doesn't seem to exist in 
/usr/ports/distfiles/.
=> Attempting to fetch from 
http://www.opensync.org/attachment/wiki/download/.
fetch: libopensync-0.22.tar.bz2?rev=&format=raw: stat()
=> Attempting to fetch from 
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/distfiles/.
fetch: libopensync-0.22.tar.bz2?rev=&format=raw: stat()
=> Couldn't fetch it - please try to retrieve this
=> port manually into /usr/ports/distfiles/ and try again.


Why is it trying to fetch libopensync-0.22.tar.bz2?rev=&format=raw ? 
Instead of libopensync-0.22.tar.bz2?  I can't even rename it to that name!