[GNC] Identify error transaction in QIF import

[Ken Farley]

Converting from Quicken seems to come up a lot here. Here's a long post 
I made after I'd converted over a lot of data:

https://lists.gnucash.org/pipermail/gnucash-user/2022-October/103226.html

There is a lot of advice in the form of wiki pages and the like, too.

To address your specific inquiry, just looking at the line you posted, 
the date format looks kind of wonky. I would expect something like " 5/ 
4/21" or better would be something like 2021-05-04. I don't recall if 
Quicken will let you specify the date format when you export to QIF (the 
last time I did this stuff was 2018).

Given that QIF files appear to be binary, I don't know how you could go 
about correcting things even if you knew which part of a record was bad. 
At least the ones I have from when I did the process are binary.