DoxiParser.py: improved debugging for git_author_date case
DoxiParser.py: improved debugging for git_author_date case

tim-janik/beast,tim-janik/beast,swesterfeld/beast,GNOME/beast,GNOME/beast,swesterfeld/beast,swesterfeld/beast,GNOME/beast,tim-janik/beast,swesterfeld/beast,tim-janik/beast,tim-janik/beast,tim-janik/beast,GNOME/beast,swesterfeld/beast,swesterfeld/beast,GNOME/beast,GNOME/beast,swesterfeld/beast,tim-janik/beast,GNOME/beast