Cribl 修改字段rename
Cribl 还可以扮演修改字段的角色，虽然这个在splunk 里面可以实现，这个source 源头就可以实现:
Add a Rename Function to Rename Fields
In this step, you will use the Rename Function to change the name of a field. See the Rename Function for more information.
Changing field names can make those fields more user-friendly and also easier to read. If character counts are a concern, thi