src/config/SSSDConfig/ipachangeconf.py is licensed under GPLv3+
    
    $ git log --format='%an <%ae>' src/config/SSSDConfig/ipachangeconf.py | sort | uniq
    amitkuma <amitkuma@redhat.com>
    Bohuslav Kabrda <bkabrda@redhat.com>
    Jan Cholasta <jcholast@redhat.com>
    Lukas Slebodnik <lslebodn@redhat.com>
    René Genz <liebundartig@freenet.de>
    Stephen Gallagher <sgallagh@redhat.com>
    
    All except René Genz are Red Hat employees and Rene agreed to use
    GPLv3+ for his contribution.
    
    This file is not original work, but it is based on authconfig which is
    GPLv2+, so we can relicense to v3 just fine.
    
    Reviewed-by: Michal Židek <mzidek@redhat.com>