### What changes were proposed in this pull request?
The parameters doc string of the function format_string was changed from _col_, _d_ to _format_, _cols_ which is what the actual function declaration states
### Why are the changes needed?
The parameters stated by the documentation was inaccurate
### Does this PR introduce any user-facing change?
Yes.
**BEFORE**
**AFTER**
### How was this patch tested?
N/A: documentation only
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Closes#25506 from darrentirto/SPARK-28777.
Authored-by: darrentirto <darrentirto@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
a787bc2884
