static function format_logline( PLUGError $Err ){
		if( PLUG::is_compiled() ){
			return sprintf(
				'%s: %s: %s', 
				basename(self::arg(0)), 
				$Err->getTypeString(), 
				$Err->getMessage()
			);
		}
		else {
			return sprintf(
				'%s: %s: %s in %s#%u', 
				basename(self::arg(0)), 
				$Err->getTypeString(), 
				$Err->getMessage(), 
				basename($Err->getFile()), 
				$Err->getLine()
			);
		}
	}