Extend number of digits to 4

[boredland]

Many programs (like pdfbeads) will sort images like this:
100.tif
1001.tif
1002.tif
...
999.tif
And so on for image counts higher than 999. To solve this we only need one more digit (starting with 0000 instead of 000).

[boredland]

Closing this myself as the reporter — I'm no longer pursuing it, and I'd rather not leave it sitting in your triage queue.

No action is needed from the maintainers, and this says nothing about the validity of the report: if anyone else is hitting the same thing, please reopen or file fresh.

[boredland]

Reopening — please disregard my previous comment.

That closure was a mistake on my side: it came from a bulk sweep of my own filed issues, not from a considered decision to withdraw this report. Sorry for the noise in your notifications.

The report stands as originally written.