- if ( $errorFallback === null ) {
- $this->errorFallback = $main->createPrinterByName( $main->getParameter( 'format' ) );
- } else {
- $this->errorFallback = $errorFallback;
- }
+ $this->errorFallback = $errorFallback ?:
+ $main->createPrinterByName( $main->getParameter( 'format' ) );