Where is r.water.outlet?

GRASS GRASS user
1

There is a description for the programm r.water.outlet in the manpages for
GRASS 4.1. I tried to use it but it doesn't exist. Even there is no source
for the program. Any hints to get it?

Thanks in advance.

Heike Keil (heike@geo0.geog.uni-heidelberg.de)