docs: def list_tab(user):
      '''
      Return the contents of the specified user's incrontab
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' incron.list_tab root
      '''
      if user == 'system':
          data = raw_system_incron()
      else:
          data = raw_incron(user)
          log.debug('incron user data %s', data)
      ret = {'crons': [],
             'pre': []
             }
      flag = False
      comment = None
      tag = '# Line managed by Salt, do not edit'
      for line in data.splitlines():
          if line.endswith(tag):
              if len(line.split()) > 3:
                  # Appears to be a standard incron line
                  comps = line.split()
                  path = comps[0]
                  mask = comps[1]
                  (cmd, comment) = ' '.join(comps[2:]).split(' # ')
  
                  dat = {'path': path,
                         'mask': mask,
                         'cmd': cmd,
                         'comment': comment}
                  ret['crons'].append(dat)
                  comment = None
          else:
              ret['pre'].append(line)
      return ret