title: How do I remove an author from a git repository?
body: <p>If I create a Git repository and publish it publicly (e.g. on GitHub etc.), and I get a request from a contributor to the repository to remove or obscure their name for whatever reason, is there a way of doing so easily?</p>
  
  <p>Basically, I have had such a request and may want to replace their name and e-mail address with something like "Anonymous Contributor" or maybe a SHA-1 hash of their e-mail address or something like that.</p>