run: preserve the error type from stdlib/flag #72

	name: build

	on:
	push:
	branches:
	- master
	pull_request:
	types: [assigned, opened, synchronize, reopened]

	jobs:
	build:
	name: Build & run examples
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [macos-latest, ubuntu-latest, windows-latest]
	steps:

	- name: Set up Go 1.19
	uses: actions/setup-go@v1
	with:
	go-version: 1.19
	id: go

	- name: Check out code
	uses: actions/checkout@master

	- name: Build basic
	run: go build -v ./examples/basic

	- name: Run basic
	run: ./basic

	- name: Build chained
	run: go build -v ./examples/chained

	- name: Run chained
	run: ./chained -name World -age 30 -awesome true

	- name: Build custom-banner
	run: go build -v ./examples/custom-banner

	- name: Run custom-banner
	run: ./custom-banner -help

	- name: Build flags
	run: go build -v ./examples/flags

	- name: Run flags
	run: ./flags -name World -age 30 -awesome true

	- name: Build flags-compact
	run: go build -v ./examples/flags-compact

	- name: Run flags-compact
	run: ./flags-compact -name World -age 30 -awesome true

	- name: Build nested-subcommands
	run: go build -v ./examples/nested-subcommands

	- name: Run nested-subcommands top
	run: ./nested-subcommands top

	- name: Run nested-subcommands middle
	run: ./nested-subcommands top middle

	- name: Run nested-subcommands bottom
	run: ./nested-subcommands top middle bottom

	- name: Build subcommands
	run: go build -v ./examples/subcommands

	- name: Run subcommands init
	run: ./subcommands init

	- name: Run subcommands test
	run: ./subcommands test

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