Hack svnmailer: Subject with "Log"

Change commit email subject to be the first line of change log.

Fedora 14
svnmailer-1.0.8

1. vi /usr/lib/python2.7/site-packages/svnmailer/notifier/_mail.py
2. Add the following blue line at L:334.

  subject = dosubject('files')
  if len(subject) > short_length:
      subject = dosubject('dirs')

   subject = "%s %s" % (subject, self.getLog())

  # reduce to the max ...
  if max_length and len(subject) > max_length:
      subject = "%s..." % subject[:max_length - 3]