gnucash maint: Fix wrong date of beginning of epoch.

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash/commit/7b1c0509 (commit)
	from  https://github.com/Gnucash/gnucash/commit/7147e8a6 (commit)



commit 7b1c0509f75f27ebd2a971fae7fd64fa34588589
Author: John Ralls <jralls at ceridwen.us>
Date:   Thu Apr 7 09:34:59 2022 -0700

    Fix wrong date of beginning of epoch.



Summary of changes:
 gnucash/gnome-utils/gnc-date-edit.c      |  2 +-
 gnucash/import-export/aqb/gnc-ab-utils.c | 20 +++++++++++++++++---
 2 files changed, 18 insertions(+), 4 deletions(-)