Add copyright header for health_test.go

[ahrtr]

What would you like to be added?

Add copyright header for
https://github.com/etcd-io/etcd/blob/main/server/etcdserver/api/etcdhttp/health_test.go

// Copyright 2022 The etcd 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.

Why is this needed?

Each file should have the copyright header

[serathius]

This should be prevented by license_header check. I think the problem is that go_srcs_in_module, which is used to generate list of go files to check, skips test files. The result is that existing validation doesn't ensure license header in test files.

Code

etcd/scripts/test.sh

Lines 476 to 481 in 2e790d2

	function license_header_per_module {
	# bash 3.x compatible replacement of: mapfile -t gofiles < <(go_srcs_in_module "$1")
	local gofiles=()
	while IFS= read -r line; do gofiles+=("$line"); done < <(go_srcs_in_module "$1")
	run_go_tool "github.com/google/addlicense" --check "${gofiles[@]}"
	}

Would be good to follow up this issue with fixining license_header check to cover all files.