CLN-29547 replace old string formatting
Thanks @3vts 

Looks like you need to run `black` against any Python file you've modified, see [contributing to the code base](https://pandas.pydata.org/pandas-docs/stable/development/contributing.html#contributing-to-the-code-base) @3vts this PR is too big

keep the modifications to < 10 files as a time @MarcoGorelli I did, the error came when I resolved conflicts
@jreback will do, sorry, new here.....