Replaced !r with repr()
- [x] reference #29886
- [ ] tests added / passed
- [x] passes `black pandas`
- [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`

Issue: https://github.com/pandas-dev/pandas/issues/29886

@WillAyd 
Thanks for the PR. Looks good and I think CI failures are unrelated / have been fixed on master since this was created.

To be sure, can you locally on your `fstring-sorting` branch run:

```sh
git fetch upstream
git merge upstream/master
git push origin fstring-sorting
```

I think should get CI green for this. Flag me down at PyData if you have any questions Looks like a merge conflict @kvn219 can you fix that up and re-push? > Looks like a merge conflict @kvn219 can you fix that up and re-push?

 Hey @WillAyd, I'm not sure what to do. I'll go to HackLA next week and ask for help. Thanks @kvn219 