Updated mediawiki/extensions
Project: mediawiki/extensions/AbuseFilter  f7ed4cffeec645124f6cc3111f35d00d9029f839

Restore b/c for pre-1.23 MediaWiki versions

Change-Id: Ibcc48b519271645f85f186ecb20fc6d2854aee06
Follows-Up: I67701856297927b94aa443a78376bae7d7860def