Magento 1.9: Downloadable Products cannot be created (German localization)

In Magento 1.9 there is a JavaScript error on the product page in the backend that prohibits adding links to downloadable products when using the default German localization that ships with this Magento version. The root cause for this problem is the file app/locale/de_DE/Mage_Media.csv which somehow contains an additional line break at the end of […]