Any documentation for the FreeBSD port of mplex?

[Oliver Iberien]

The mplex multiplexer port doesn't seem to support the same options that the 
linux version does. (At least, "-f" is illegal.) The man page is very brief 
and the pkg-descr file has almost nothing as well. I'm trying to get the  
http://inferno.slug.org/cgi-bin/wiki?AviToVob script to work, but without a 
man page I'm stuck. Any clues?

Thanks,

Oliver