The user-contributed sm_amazon_dns example has many die() statements and is not returning PEAR errors

[danbrenner]

For example:

https://github.com/TeamUbersmith/service_modules/blob/master/sm_amazon_dns/class.sm_amazon_dns.php#L314

Ubersmith Inc. didn't write this example, but we should probably correct it - however, I've never used/tested this module and I'm not aware of its history. The print() statements instead of returning PEAR errors are incorrect, and there should never be die() statements in this code.