pfidp: fix deprecation warning on mail_admins LOGGING

virtualenv/pfidp/settings.py

@@ -261,6 +261,11 @@ LOGGING = {
             'datefmt': '%Y-%m-%d %a %H:%M:%S'
         },
     },
+    'filters': {
+        'require_debug_false': {
+            '()': 'django.utils.log.RequireDebugFalse'
+        }
+    },
     'handlers': {
         'null': {
             'level':'DEBUG',
@@ -283,6 +288,7 @@ LOGGING = {
         },
         'mail_admins': {
             'level': 'ERROR',
+            'filters': ['require_debug_false'],
             'class': 'django.utils.log.AdminEmailHandler',
             'include_html': True,
         }