Bug#905977: kea-ctrl-agent: missing dependency on python3

[Adrian Bunk]

Package: kea-ctrl-agent
Version: 1.4.0.P1-3
Severity: serious

kea-ctrl-agent lacks a python3 dependency
for /usr/sbin/kea-shell

This can be fixed by adding dh-python to the build dependencies
plus python3 to the "dh $@ --with" in debian/rules.