Call 3 arg GitChangeSet constructor for compatibility
Call 3 arg GitChangeSet constructor for compatibility

The 2 arg constructor changes behavior for JGit implementations with
the release of git plugin 4.0.  This retains existing behavior.

v1v/git-plugin,martinda/git-plugin,v1v/git-plugin,martinda/git-plugin,jenkinsci/git-plugin,martinda/git-plugin,jenkinsci/git-plugin,MarkEWaite/git-plugin,MarkEWaite/git-plugin,jenkinsci/git-plugin,MarkEWaite/git-plugin,MarkEWaite/git-plugin,jenkinsci/git-plugin,v1v/git-plugin