当我通过puppet配置cron时，它会在crontab文件上打印以下消息，
# HEADER: This file was autogenerated at <date> by puppet.
# HEADER: While it can still be managed manually, it is definitely not recommended.
# HEADER: Note particularly that the comments starting with 'Puppet Name' should
# HEADER: not be deleted, as doing so could cause duplicate cron jobs.
无论如何都要压制此消息？