docs: def update_jail(name):
      '''
      Run freebsd-update on `name` poudriere jail
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' poudriere.update_jail freebsd:10:x86:64
      '''
      if is_jail(name):
          cmd = 'poudriere jail -u -j {0}'.format(name)
          ret = __salt__['cmd.run'](cmd)
          return ret
      else:
          return 'Could not find jail {0}'.format(name)