[Solved] How do I append "Author" to Title

Title says it all. While I was importing stuff into a new library - a few got messed up.

Before:
Title = This is an
Author = Interesting Title



What I want
Title = This is an Interesting Title
Author = (I don't care at this point)


Google has told me how to SWAP the fields but not how to append values. I really don't want to reimport them all.