To keep it compact, how would you like this instead of the full paths?
...repo1...\MyCode.c
...repo2...\MyCode.c
That is, just collapses the common path elements in the beginning and end to ...
If they have nothing in common, then you would see full paths, like this:
C:\Temp\MyCode.c
D:\Source\repo1\subdir\MyCode.c
If that sounds good, I'll file a FR. I would rather have it put in the path information than synthesize the artificial (a), (b), etc.