Edit o Matic (pkjbfpafnhdkfngfdbaccemadaikifjj): Create edit links for Google Forms submissions. Creates short links using the bit.ly service.... Read More > or Download Now >
Edit o Matic allows users to retrieve the 'Edit URL' (or the editing links) of Google Forms submissions. Edit o Matic also uses the bitly link shortener to create short links for easy sharing and analytics. This is really useful for using Google Forms as a quiz and allowing people to update their responses.
You will need to run the add-on each time you want to shortern the links.