Comment 4 for bug 1781039

Bah. similar to described in
 http://cloudinit.readthedocs.io/en/latest/topics/hacking.html
but instead of 'master' you'll propose merge into ubuntu/trusty.

Also, you will need to do the change as a "quilt 3.0" format...
that is to say your change will add a file to debian/patches/
and will update debian/patches/series.