Fix default for secret_key in configuration.py

Author: cimnine

configuration/configuration.py

@@ -75,7 +75,7 @@ def _read_secret(secret_name, default = None):
 # For optimal security, SECRET_KEY should be at least 50 characters in length and contain a mix of letters, numbers, and
 # symbols. NetBox will not run without this defined. For more information, see
 # https://docs.djangoproject.com/en/stable/ref/settings/#std:setting-SECRET_KEY
-SECRET_KEY = _read_secret('secret_key', environ.get('SECRET_KEY'))
+SECRET_KEY = _read_secret('secret_key', environ.get('SECRET_KEY', ''))
 
 
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