Properly get the plugin logging messages to httpd errorlog

Signed-off-by: Ryan Lerch <rlerch@redhat.com>

roles/koji_hub/templates/hub.conf.j2

@@ -5,7 +5,7 @@ DBName = koji
 DBUser = koji
 {% if env == "staging" %}
 DBHost = db-koji01
-LogLevel = DEBUG
+LogLevel = koji._koji_plugin__koji-fedoramessaging:DEBUG
 LogFormat = %(asctime)s [%(levelname)s] m=%(method)s u=%(user_name)s p=%(process)s r=%(remoteaddr)s %(name)s: %(message)s
 DBPass = {{ kojiStgPassword }}
 {% else %}