anchor.diff:  $wgDBerrorLog = true;
   
   $wgMWLoggerDefaultSpi = array(
  -	'class' => 'MWLoggerMonologSpi',
  +	'class' => '\\MediaWiki\\Logger\\MonologSpi',
   	'args' => array( array(
   		'loggers' => array(
   			'@default' => array(
  
positive.code: 
  		'handlers' => array(
  			'default' => array(
  				'class' => 'MWLoggerMonologHandler',
  				'args' => array( '/vagrant/logs/monolog-'.date('Ymd').'.log' ),
  				'formatter' => 'line',
  			),
  			'syslog' => array(
  				'class' => 'MWLoggerMonologSyslogHandler',
  				'args' => array( 'mediawiki', '127.0.0.1', 10514 ),
  				'formatter' => 'logstash',
  			),
  			'profiler' => array(
  				'class' => 'MWLoggerMonologHandler',
  				'args' => array( '/vagrant/logs/profiler-'.date('Ymd').'.log' ),
  				'formatter' => 'profiler',
  			),
  		),
  
  		'formatters' => array(
  			'line' => array(
  				'class' => '\\Monolog\\Formatter\\LineFormatter',
  			),
  			'logstash' => array(
  				'class' => '\\Monolog\\Formatter\\LogstashFormatter',
  				'args'  => array( 'mediawiki', php_uname( 'n' ), null, '', 1 ),
  
negative.code: 
  		'processors' => array(
  			'wiki' => array(
  				'class' => '\\MediaWiki\\Logger\\Monolog\\WikiProcessor',
  			),
  			'psr' => array(
  				'class' => '\\Monolog\\Processor\\PsrLogMessageProcessor',
  