if bytes.Contains(slurp, []byte("go.googlesource.com")) &&
		bytes.Contains(slurp, []byte("go-review.googlesource.com")) {
		// Probably good.
		return
	}
	log.Fatal("Your .gitcookies file isn't configured.\n" +
		"Next steps:\n" +
		"  * Submit a CLA (https://golang.org/doc/contribute.html#cla) if not done\n" +
		"  * Go to https://go.googlesource.com/ and click \"Generate Password\" at the top,\n" +
		"    then follow instructions.\n" +
		"  * Run go-contrib-init again.\n")
}