error_squelch
No security coverage
Suppresses Drupal status, warning, and error messages that match configured patterns. Enter one substring (or regex) per line; any matching message is silently filtered before it renders. Useful for hiding persistent test-mode notices, CI/CD log noise, and chatty third-party module warnings.
Does NOT fix the underlying cause of any message. Use this only to reduce noise, not as a substitute for resolving the actual issue.