Improve debug display

docker_dev_start.py

@@ -321,7 +321,7 @@
     if c.has_option('odoo_scripts', 'modules'):
         for entry in c.get('odoo_scripts', 'modules').split():
             modules.extend(glob.glob(entry))
-    _logger.debug("addon modules: %s", modules)
+    _logger.debug("addon modules: %s", ','.join(modules))
 
     registry = (
         c.has_section('odoo_scripts') and