I've know my wife for the last 18 or 19 years and it was written before that, so I haven't seen the original. I have seen him debugging code in the evenings though. This consisted of printing out the entire programme (in the DBase sense a "programme" is a single file, but a programme in our sense would be a collection of dbase programmes) and the paper (dot matrix, so it's all connected) trailing all thruought the house as he draws pencil lines all over it to reconstruct programme flow. no indentation at all

The short answer to your question is no, I didn't see any evidence of improved structure or practices at all. All variables global. goto ftw. no procedures/methods/functions at all. He's never even heard of the concept when I tried to explain.

[Edit: managed to get hold of some of the code (see parent) and it looks like I was wrong on the indentation - he did start to use it at some point]