Fix license header (#203)

This plugin is OSS distribution. Elastic Licensed header was wrongly added to a file

Author: kaisecheng

CHANGELOG.md

@@ -1,3 +1,6 @@
+## 4.20.1
+  - Fix license header [#203](https://github.com/logstash-plugins/logstash-input-elasticsearch/pull/203)
+
 ## 4.20.0
   - Added `response_type` configuration option to allow processing result of aggregations [#202](https://github.com/logstash-plugins/logstash-input-elasticsearch/pull/202)
 

lib/logstash/helpers/loggable_try.rb

@@ -1,7 +1,3 @@
-# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
-# or more contributor license agreements. Licensed under the Elastic License;
-# you may not use this file except in compliance with the Elastic License.
-
 require 'stud/try'
 
 module LogStash module Helpers

logstash-input-elasticsearch.gemspec

@@ -1,7 +1,7 @@
 Gem::Specification.new do |s|
 
   s.name            = 'logstash-input-elasticsearch'
-  s.version         = '4.20.0'
+  s.version         = '4.20.1'
   s.licenses        = ['Apache License (2.0)']
   s.summary         = "Reads query results from an Elasticsearch cluster"
   s.description     = "This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program"