XF 2.2 I made a small change directly to a source module years ago - how do I back it out?

[Twincam]

I made a small change directly to one source module years ago, and now I want to back it out and create it as an addon. The system is correctly highlighting it as a failed file health check. Is there a simple way to revert it or Do i just need to download the source, find it and do it manually?

 

[Paul B]

Just reupload the original file.