This bug was fixed in the package software-properties - 0.96.24.4
--------------- software-properties (0.96.24.4) yakkety; urgency=medium
* add-apt-repository: fix compatibility with keybox gnupg 2.1. LP: #1615039
-- Dimitri John Ledkov <email address hidden> Thu, 01 Sep 2016 11:25:27 +0100
This bug was fixed in the package software-properties - 0.96.24.4
---------------
software-properties (0.96.24.4) yakkety; urgency=medium
* add-apt-repository: fix compatibility with keybox gnupg 2.1. LP:
#1615039
-- Dimitri John Ledkov <email address hidden> Thu, 01 Sep 2016 11:25:27 +0100