At the end, my suggestion is to try to compose your personal commit message standard, following previous hints and looking at message strategies adopted by great projects and teams around the web, but especially by doing it. Your standard will change for sure, as you evolve as a software developer and Git user, so start as soon as possible and let the time help you find the perfect way to write a commit message.

At least, don't imitate this link: http://www.commitlogsfromlastnight.com.