ERR non-ISO formats don't show position of error 
- [ ] closes #50361 (Replace xxxx with the GitHub issue number)
- [ ] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [ ] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [ ] Added [type annotations](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#type-hints) to new arguments/methods/functions.
- [ ] Added an entry in the latest `doc/source/whatsnew/vX.X.X.rst` file if fixing a bug or adding a new feature.

---


I've aligned them now, thanks - this should  make the diff in #50242  much smaller

----

```python
In [1]: to_datetime(['2020-01-01', '9999-01-01'], format='%Y-%m-%d')
---------------------------------------------------------------------------
OutOfBoundsDatetime: Out of bounds nanosecond timestamp: 9999-01-01 00:00:00 present at position 1

In [2]: to_datetime(['2020-01-01', '9999-01-01'], format='%Y-%d-%m')
---------------------------------------------------------------------------
OutOfBoundsDatetime: Out of bounds nanosecond timestamp: 9999-01-01 00:00:00 present at position 1

In [3]: to_datetime(['2020-01-01', 'foo'], format='%Y-%m-%d')
---------------------------------------------------------------------------
ValueError: time data "foo" at position 1 doesn't match format "%Y-%m-%d" (match)

In [4]: to_datetime(['2020-01-01', 'foo'], format='%Y-%d-%m')
----------------------------------------------------------------------------
ValueError: time data "foo" at position 1 doesn't match format "%Y-%d-%m" (match)
``` Looks like a merge conflict but feel free to merge after that cool, thanks for reviewing!