Function saveToOutput of PdfService not working

[rintisch]

Two syntax errors in saveToOutput of B13\Format\Service\PdfService lead to a Internal Server Error is this function is used:

1. Error (line 77)
   Is: header('Cache-Control :private');
   Should be: header('Cache-Control: private'); (whitespace goes one to the right)

2. Error (line 83)
   Is: header('Content-Transfer-Encodin :binary', true);
   Should be: header('Content-Transfer-Encoding: binary', true); (add a g add Encoding and once more, the whitespace goes one to the right)

[rintisch]

I will create a pull request for this