This bug was fixed in the package ubuntu-defaults-builder - 0.55~16.04.2
--------------- ubuntu-defaults-builder (0.55~16.04.2) xenial-proposed; urgency=medium
* SRU: LP: #1597370, fix build/test failures (set standards to 3.9.7).
-- Martin Pitt <email address hidden> Tue, 05 Jul 2016 15:43:17 +0200
This bug was fixed in the package ubuntu- defaults- builder - 0.55~16.04.2
--------------- defaults- builder (0.55~16.04.2) xenial-proposed; urgency=medium
ubuntu-
* SRU: LP: #1597370, fix build/test failures (set standards to 3.9.7).
-- Martin Pitt <email address hidden> Tue, 05 Jul 2016 15:43:17 +0200