code: def authors():
      
      fmt_re = re.compile(r'([^<]+) <([^>]+)>')
      authors = local('git shortlog -s -e -n | cut -f 2-', capture=True)
      with open('AUTHORS', 'w') as fh:
          fh.write('Project contributors\n')
          fh.write('====================\n\n')
          for line in authors.splitlines():
              match = fmt_re.match(line)
              name, email = match.groups()
              if email in env.ignored_authors:
                  continue
              fh.write(' * ')
              fh.write(line)
              fh.write('\n')
docs: Updates the AUTHORS file with a list of committers from GIT.