Fast_404 generates warnings on every instance D9.5.9 - php 8.1

Problem/Motivation

Every time a 404 is generated from site traffic the 404 event is logged. But system also triggers at least two warning errors in the system log. For sites with a lot of traffic the 404 event log is indated with 3 instead of 1 record per 404 event.

Core: 9.5.9
PHP: 8.1
Apache: 2.4.52
MariaDB: 10.6.12

Steps to reproduce

Enter an invalid url on the site.

Proposed resolution

Clean up the 404 regular expressions and or add filters to clean it up.

/core/modules/system/config/install/system.performance.yml
LIne: 7

fast_404:
  enabled: true
  paths: '/\.(?:txt|png|gif|jpe?g|css|js|ico|swf|flv|cgi|bat|pl|dll|exe|asp)$/i'
  exclude_paths: '/\/(?:styles|imagecache)\//'

Remove the "(" and ")" in the regular expressions to look like.

fast_404:
  enabled: true
  paths: '/\.?:txt|png|gif|jpe?g|css|js|ico|swf|flv|cgi|bat|pl|dll|exe|asp$/i'
  exclude_paths: '/\/?:styles|imagecache\//'

Alternatively, and of course a messier alternative is to add filters to the code that calls the settings.

(patch attached)

Release notes snippet

If reformatting the install YAML consider a update hook to reset the default settings.