visionmedia/git-extras — pull request #102 by Phally (2012-05-05 10:41:33+00:00)
Title: Entering the tag name in the command line with git-changelog

This adds an argument to git-changelog which allows you to enter the tag name directly into the command line:

git changelog --tag 1.0.6
git changelog -t 1.0.6

This way you don't have to open the file afterwards and change the tag name.