Some backtraces are quite large, an option is to increase your terminal
buffer -- but dumping to a file is also useful if you want to share the
crash.
I'm not crazy about the way I hacked this in, but it felt like the least
invasive way for now and I don't want to cause a regression with the
debugger. It's also nice that it dumps with ansi colors as then you can
view the backtrace with the original coloring:
Usage:
```clj
(:di "./stacktrace.log")
```
87ff182332
