- $ota = explode( "\n", $wgContLang->segmentForDiff( $otext ) );
- $nta = explode( "\n", $wgContLang->segmentForDiff( $ntext ) );
+ $contLang = MediaWikiServices::getInstance()->getContentLanguage();
+ $ota = explode( "\n", $contLang->segmentForDiff( $otext ) );
+ $nta = explode( "\n", $contLang->segmentForDiff( $ntext ) );