|  | @@ -17,7 +17,7 @@ | 
                                                    
                                                        |  |  |  block discarded – undo | 
                                                                                                                                                                                                                    
                                                            | 17 | 17 |   | 
                                                                                                            
                                                            | 18 | 18 |      public function __construct() | 
                                                                                                            
                                                            | 19 | 19 |      { | 
                                                                                                            
                                                            | 20 |  | -        parent::__construct(\MultipleIterator::MIT_NEED_ALL | \MultipleIterator::MIT_KEYS_NUMERIC); | 
                                                                                                            
                                                            |  | 20 | +        parent::__construct(\MultipleIterator::MIT_NEED_ALL|\MultipleIterator::MIT_KEYS_NUMERIC); | 
                                                                                                            
                                                            | 21 | 21 |          foreach (func_get_args() as $iterable) { | 
                                                                                                            
                                                            | 22 | 22 |              if (!$iterable instanceof \Iterator) { | 
                                                                                                            
                                                            | 23 | 23 |                  throw new \InvalidArgumentException(sprintf('Not all arguments are iterators')); | 
                                                                                                                                                
                                         
                                        
                                            
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