What options do you have for debugging apart from having 4 lines of herosay?

[meszaros-lajos-gyorgy]

herosay prints to the screen and the -d only disables it (no idea why would anyone want that when you can just comment out the line).

The game will only show 4 lines of herosay, which are not echoed back to the game console, nor is it showing up on the game's stdout in debug mode. After 4 lines the text will get scrolled effectively deleting previous lines.

How do you debug with these extreme limitations?