SVNCommitEmailMaildirSource parses message sent out by the
commit-email.pl script, which is included in the Subversion
distribution.
It does not currently handle branches: all of the Change objects that it creates will be associated with the default (i.e. trunk) branch.
from buildbot.changes.mail import SVNCommitEmailMaildirSource
c['change_source'] = SVNCommitEmailMaildirSource("~/maildir-buildbot")