update dependencies

Signed-off-by: huanggze <loganhuang@yunify.com>

vendor/github.com/elastic/go-elasticsearch/v5/esapi/doc.go

@@ -0,0 +1,94 @@
+/*
+Package esapi provides the Go API for Elasticsearch.
+
+It is automatically included in the client provided by the
+github.com/elastic/go-elasticsearch package:
+
+	es, _ := elasticsearch.NewDefaultClient()
+	res, _ := es.Info()
+	log.Println(res)
+
+For each Elasticsearch API, such as "Index", the package exports two corresponding types:
+a function and a struct.
+
+The function type allows you to call the Elasticsearch API as a method on the client,
+passing the parameters as arguments:
+
+	res, err := es.Index(
+		"test",                                  // Index name
+		strings.NewReader(`{"title" : "Test"}`), // Document body
+		es.Index.WithDocumentID("1"),            // Document ID
+		es.Index.WithRefresh("true"),            // Refresh
+	)
+	if err != nil {
+		log.Fatalf("ERROR: %s", err)
+	}
+	defer res.Body.Close()
+
+	log.Println(res)
+
+	// => [201 Created] {"_index":"test","_type":"_doc","_id":"1" ...
+
+The struct type allows for a more hands-on approach, where you create a new struct, with the
+request configuration as fields, and call the Do() method
+with a context and the client as arguments:
+
+	req := esapi.IndexRequest{
+		Index:      "test",                                  // Index name
+		Body:       strings.NewReader(`{"title" : "Test"}`), // Document body
+		DocumentID: "1",                                     // Document ID
+		Refresh:    "true",                                  // Refresh
+	}
+
+	res, err := req.Do(context.Background(), es)
+	if err != nil {
+		log.Fatalf("Error getting response: %s", err)
+	}
+	defer res.Body.Close()
+
+	log.Println(res)
+
+	// => [200 OK] {"_index":"test","_type":"_doc","_id":"1","_version":2 ...
+
+The function type is a wrapper around the struct, and allows
+to configure and perform the request in a more expressive way.
+It has a minor overhead compared to using a struct directly;
+refer to the esapi_benchmark_test.go suite for concrete numbers.
+
+See the documentation for each API function or struct at
+https://godoc.org/github.com/elastic/go-elasticsearch,
+or locally by:
+
+	go doc github.com/elastic/go-elasticsearch/v5/esapi Index
+	go doc github.com/elastic/go-elasticsearch/v5/esapi IndexRequest
+
+Response
+
+The esapi.Response type is a lightweight wrapper around http.Response.
+
+The res.Body field is an io.ReadCloser, leaving the JSON parsing to the
+calling code, in the interest of performance and flexibility
+(eg. to allow using a custom JSON parser).
+
+It is imperative to close the response body for a non-nil response.
+
+The Response type implements a couple of convenience methods for accessing
+the status, checking an error status code or printing
+the response body for debugging purposes.
+
+Additional Information
+
+See the Elasticsearch documentation at
+https://www.elastic.co/guide/en/elasticsearch/reference/master/api-conventions.html for detailed information
+about the API endpoints and parameters.
+
+The Go API is generated from the Elasticsearch JSON specification at
+https://github.com/elastic/elasticsearch/tree/master/rest-api-spec/src/main/resources/rest-api-spec/api
+by the internal package available at
+https://github.com/elastic/go-elasticsearch/tree/master/internal/cmd/generate/commands.
+
+The API is tested by integration tests common to all Elasticsearch official clients, generated from the
+source at https://github.com/elastic/elasticsearch/tree/master/rest-api-spec/src/main/resources/rest-api-spec/test. The generator is provided by the internal package internal/cmd/generate.
+
+*/
+package esapi