Vendor integration dependencies.

integration/vendor/github.com/docker/engine-api/client/service_update.go

@@ -0,0 +1,18 @@
+package client
+
+import (
+	"net/url"
+	"strconv"
+
+	"github.com/docker/engine-api/types/swarm"
+	"golang.org/x/net/context"
+)
+
+// ServiceUpdate updates a Service.
+func (cli *Client) ServiceUpdate(ctx context.Context, serviceID string, version swarm.Version, service swarm.ServiceSpec, headers map[string][]string) error {
+	query := url.Values{}
+	query.Set("version", strconv.FormatUint(version.Index, 10))
+	resp, err := cli.post(ctx, "/services/"+serviceID+"/update", query, service, headers)
+	ensureReaderClosed(resp)
+	return err
+}