This bug was fixed in the package base-installer - 1.158ubuntu3
--------------- base-installer (1.158ubuntu3) yakkety; urgency=medium
* Tolerate omission of leading "deb " in apt-setup/local0/repository (based on patch by Lars Kollstedt; LP: #1512347).
-- Colin Watson <email address hidden> Wed, 04 May 2016 00:43:55 +0100
This bug was fixed in the package base-installer - 1.158ubuntu3
---------------
base-installer (1.158ubuntu3) yakkety; urgency=medium
* Tolerate omission of leading "deb " in apt-setup/ local0/ repository
(based on patch by Lars Kollstedt; LP: #1512347).
-- Colin Watson <email address hidden> Wed, 04 May 2016 00:43:55 +0100