Command err handling #1403

	name: lint
	on: [push, pull_request]

	permissions:
	contents: read
	pull-requests: read

	jobs:
	golangci:
	name: lint
	runs-on: ubuntu-latest
	steps:
	- name: Install Go
	uses: actions/setup-go@v5
	with:
	go-version: 1.21.x

	- uses: actions/checkout@v4
	- name: golangci-lint
	uses: golangci/golangci-lint-action@v4
	with:
	only-new-issues: true

	tidy:
	name: Remain 'go mod tidy'
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	- name: Install Go
	uses: actions/setup-go@v5
	with:
	go-version: 1.21.x
	- name: Verify tidyness
	run: \|
	go mod tidy
	if ! git diff --quiet go.mod go.sum; then
	echo "'go mod tidy' resulted in changes:"
	git diff go.mod go.sum
	echo "Please commit these changes."
	fi

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