gnucash maint: Multiple changes pushed

[Robert Fewell]

Updated	 via  https://github.com/Gnucash/gnucash/commit/27cab58b (commit)
	 via  https://github.com/Gnucash/gnucash/commit/c000a890 (commit)
	from  https://github.com/Gnucash/gnucash/commit/2b198dbc (commit)



commit 27cab58bf236fc362ab2d07b1299ed29727cf8f6
Author: Robert Fewell <14uBobIT at gmail.com>
Date:   Fri May 6 12:15:39 2022 +0100

    Correct some text describing some date functions.

commit c000a890ad1ec8ba14e83726f4ddca58c036ce34
Author: Robert Fewell <14uBobIT at gmail.com>
Date:   Fri Apr 29 11:20:36 2022 +0100

    Bug 798501 - Balance wrong date end of account period
    
    With the accounting period preference settings set to 'Start/End of
    previous quarter' and balance sheet report using 'End of accounting
    period' the date is wrong, currently is 30/03/2022 when it should be
    31/03/2022.
    
    Simplify gnc_gdate_set_quarter_end to get correct last day and
    subtract the 3 months befor calling said function.



Summary of changes:
 libgnucash/engine/gnc-date.cpp | 18 +++++++-----------
 libgnucash/engine/gnc-date.h   |  8 ++++----
 2 files changed, 11 insertions(+), 15 deletions(-)