justforfunc #15: a code review with logging, errors, and signals

Back to code reviews! This time I review a piece of code by https://twitter.com/sandeepdinesh, from his repo https://github.com/thesandlord/logpipe The program simply reads from standard input and sends each line both to standard output and a logging service. What could go wrong? Many things! References: - cloud logging docs: https://cloud.google.com/go/logging - original repo: https://github.com/thesandlord/logpipe - source code: https://github.com/campoy/justforfunc/tree/master/15-logpipe