This is a very useful module which saved me hours. It is now firmly in my arsenal: I use svn-bisect both interactively and in scripts.
This module is great. It brings the "bisect search for a bug" algorithm to subversion. With svn-bisect you can
find any interesting commit using a binary search.
A tip: If you aren't using English locales be sure you set the LC_MESSAGES environment variable to "C" before running svn-bisect: