docs: def _aix_get_machine_id():
      '''
      Parse the output of lsattr -El sys0 for os_uuid
      '''
      grains = {}
      cmd = salt.utils.path.which('lsattr')
      if cmd:
          data = __salt__['cmd.run']('{0} -El sys0'.format(cmd)) + os.linesep
          uuid_regexes = [re.compile(r'(?im)^\s*os_uuid\s+(\S+)\s+(.*)')]
          for regex in uuid_regexes:
              res = regex.search(data)
              if res and len(res.groups()) >= 1:
                  grains['machine_id'] = res.group(1).strip()
                  break
      else:
          log.error('The \'lsattr\' binary was not found in $PATH.')
      return grains