Bug#1049892: xbacklight: please consider upgrading to 3.0 source format

[Bastian Germann <bage@debian.org>]

Source: xbacklight
Version: 1.2.1-1
Severity: minor

This package is among the few that still use source format 1.0.
Please upgrade it to source format 3.0:
https://wiki.debian.org/Projects/DebSrc3.0

If you do not want to move to format 3.0, please at least specify 1.0 
format so that dpkg-source can move to default 3.0 format.