}
			continue
		}
		break
	}
	return
}

// rewriteVersionList rewrites the version list in dir
// after a new *.mod file has been written.
func rewriteVersionList(ctx context.Context, dir string) (err error) {
	if filepath.Base(dir) != "@v" {
		base.Fatalf("go: internal error: misuse of rewriteVersionList")
	}

	listFile := filepath.Join(dir, "list")