Fix copyright notices

Signed-off-by: Andrew Mason <amason@slack-corp.com>

go/cmd/vtctldclient/commands.go

@@ -1,3 +1,19 @@
+/*
+Copyright 2020 The Vitess Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
 package main
 
 import (

go/cmd/vtctldclient/main.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2019 The Vitess Authors.
+Copyright 2020 The Vitess Authors.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

go/cmd/vtctldclient/plugin_grpcvtctldclient.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2019 The Vitess Authors.
+Copyright 2020 The Vitess Authors.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

go/vt/vtctl/grpcvtctldclient/client.go

@@ -1,3 +1,19 @@
+/*
+Copyright 2020 The Vitess Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
 // Package grpcvtctldclient contains the gRPC version of the vtctld client
 // protocol.
 package grpcvtctldclient

go/vt/vtctl/grpcvtctldclient/client_test.go

@@ -1,3 +1,19 @@
+/*
+Copyright 2020 The Vitess Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
 package grpcvtctldclient_test
 
 import (

go/vt/vtctl/grpcvtctldserver/server.go

@@ -1,3 +1,19 @@
+/*
+Copyright 2020 The Vitess Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
 package grpcvtctldserver
 
 import (

go/vt/vtctl/grpcvtctldserver/server_test.go

@@ -1,3 +1,19 @@
+/*
+Copyright 2020 The Vitess Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
 package grpcvtctldserver
 
 import (
@@ -119,6 +135,7 @@ func TestGetKeyspaces(t *testing.T) {
 	assert.Equal(t, expected, resp.Keyspaces)
 
 	topofactory.SetError(errors.New("error from toposerver"))
+
 	_, err = vtctld.GetKeyspaces(ctx, &vtctldatapb.GetKeyspacesRequest{})
 	assert.Error(t, err)
 }