File names are dash separated.
album-number-last,first-song name.zip
would like:
album-number-first last-song name.zip
However, I do not want to touch items named:
album-number-name,the-song name.zip
Can someone please help me regex this? Pretty sure I have to replace ", the" with something the replace it after the swap, but I rarely use regex so I'm not sure how to format it.