jenkinsci/git-plugin — pull request #120 by lruslan (2013-01-16 16:35:27+00:00)
Title: set changeSet.kind to "git" in build details

It's hard to understand from build history of git project what SCM plugin has been used. changeSet section contain optional field "kind" - it make sense set it to identify SCM used. SVN and Mercurial plugins also set corresponding value in this field, like 'changeSet': 'kind': 'svn'