lacre.admin: Report misconfiguration

Also: log more info when the daemon starts.

lacre/admin.py

@@ -109,6 +109,7 @@ def main():
     missing = conf.validate_config()
     if missing:
         LOG.error('Missing configuration parameters: %s', missing)
+        print('Insufficient configuration, aborting.')
         sys.exit(lacre.EX_CONFIG)
 
     general_conf = conf.config_source()

lacre/daemon.py

@@ -124,7 +124,10 @@ async def _main():
 
         keyring.post_init_hook()
 
-        LOG.info('Starting the daemon...')
+        LOG.info('Starting the daemon with GnuPG=%s, socket=%s, database=%s',
+                 keyring_path,
+                 conf.daemon_params(),
+                 conf.get_item('database', 'url'))
         controller.start()
 
         await _sleep()