golangci-lint/test/testdata/gofumpt_with_extra.go

//golangcitest:args -Egofumpt
//golangcitest:config linters-settings.gofumpt.extra-rules=true
package testdata

import "fmt"

func GofmtNotExtra(bar string, baz string) { // ERROR "File is not `gofumpt`-ed with `-extra`"
	fmt.Print("foo")
}