Provide an option to cut out parts of a log message

[huntc]

My log lines are very long, necessitated by the capturing of structured data in relation to the log message. Example:

2017-02-14T16:01:37Z node2 DEBUG ElasticsearchCollector [sourceThread=conductr-agent-akka.actor.default-dispatcher-2, akkaTimestamp=16:01:37.506UTC, akkaSource=akka.tcp://conductr-agent@192.168.77.22:2552/user/ElasticsearchCollector, sourceActorSystem=conductr-agent] - Posted to Elasticsearch and receive a response│

It'd be great to hide the contents between the square brackets as it is generally not required. For example:

2017-02-14T16:01:37Z node2 DEBUG ElasticsearchCollector [...] - Posted to Elasticsearch and receive a response│

...would be great.

[tstack]

If you have a format for these log files, you can either mark the field as 'hidden' in the 'value' definition or use the ':hide-fields' command to hide the field while you have the file open.

[huntc]

Sounds great! I'll try this out today. Thanks!

[huntc]

Hey @tstack - when do you think this'll be part of a release?