config option debug=True does not enable debugging for dhcp agent

[Felipe Reyes]

# If set to true, the logging level will be set to DEBUG instead of the default
# INFO level. (boolean value)
# Note: This option can be changed without restarting.
#debug = false

^^ from the docs https://docs.openstack.org/ocata/config-reference/networking/samples/dhcp_agent.ini.html

This config option is supported since icehouse.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/478542

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/478542
Committed: https://git.openstack.org/cgit/openstack/charm-neutron-gateway/commit/?id=4288b01fe6ce0de45093946687a50ea8fbf9b382
Submitter: Jenkins
Branch: master

commit 4288b01fe6ce0de45093946687a50ea8fbf9b382
Author: Felipe Reyes <email address hidden>
Date: Wed Jun 28 12:01:48 2017 -0400

    Configure DHCP Agent debug level

    When a user configures neutron-gateway debug=True the dhcp agent is
    reconfigured setting debug=True in dhcp_agent.ini

    Change-Id: Ice125d59958d12f23fefc7754abb0882c0221b15
    Closes-Bug: 1701016