Add missing license headers (#858)

Author: picandocodigo

elasticsearch-api/lib/elasticsearch-api.rb

@@ -1 +1,5 @@
+# Licensed to Elasticsearch B.V under one or more agreements.
+# Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+# See the LICENSE file in the project root for more information
+
 require 'elasticsearch/api'

elasticsearch-api/lib/elasticsearch/api.rb

@@ -1,3 +1,7 @@
+# Licensed to Elasticsearch B.V under one or more agreements.
+# Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+# See the LICENSE file in the project root for more information
+
 require "cgi"
 require "multi_json"
 

elasticsearch-api/lib/elasticsearch/api/actions/abort_benchmark.rb

@@ -1,3 +1,7 @@
+# Licensed to Elasticsearch B.V under one or more agreements.
+# Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+# See the LICENSE file in the project root for more information
+
 module Elasticsearch
   module API
     module Actions

elasticsearch-api/lib/elasticsearch/api/actions/benchmark.rb

@@ -1,3 +1,7 @@
+# Licensed to Elasticsearch B.V under one or more agreements.
+# Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+# See the LICENSE file in the project root for more information
+
 module Elasticsearch
   module API
     module Actions

elasticsearch-api/lib/elasticsearch/api/actions/bulk.rb

@@ -1,3 +1,7 @@
+# Licensed to Elasticsearch B.V under one or more agreements.
+# Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+# See the LICENSE file in the project root for more information
+
 module Elasticsearch
   module API
     module Actions

elasticsearch-api/lib/elasticsearch/api/actions/cat/aliases.rb

@@ -1,3 +1,7 @@
+# Licensed to Elasticsearch B.V under one or more agreements.
+# Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+# See the LICENSE file in the project root for more information
+
 module Elasticsearch
   module API
     module Cat

elasticsearch-api/lib/elasticsearch/api/actions/cat/allocation.rb

@@ -1,3 +1,7 @@
+# Licensed to Elasticsearch B.V under one or more agreements.
+# Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+# See the LICENSE file in the project root for more information
+
 module Elasticsearch
   module API
     module Cat

elasticsearch-api/lib/elasticsearch/api/actions/cat/count.rb

@@ -1,3 +1,7 @@
+# Licensed to Elasticsearch B.V under one or more agreements.
+# Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+# See the LICENSE file in the project root for more information
+
 module Elasticsearch
   module API
     module Cat

elasticsearch-api/lib/elasticsearch/api/actions/cat/fielddata.rb

@@ -1,3 +1,7 @@
+# Licensed to Elasticsearch B.V under one or more agreements.
+# Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+# See the LICENSE file in the project root for more information
+
 module Elasticsearch
   module API
     module Cat

elasticsearch-api/lib/elasticsearch/api/actions/cat/health.rb

@@ -1,3 +1,7 @@
+# Licensed to Elasticsearch B.V under one or more agreements.
+# Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+# See the LICENSE file in the project root for more information
+
 module Elasticsearch
   module API
     module Cat