gnucash maint: Multiple changes pushed

[Christopher Lam]

Updated	 via  https://github.com/Gnucash/gnucash/commit/b480600d (commit)
	 via  https://github.com/Gnucash/gnucash/commit/23e528f5 (commit)
	from  https://github.com/Gnucash/gnucash/commit/de6ee25e (commit)



commit b480600dc89f7befe00bf68d35e2c014e52041ca
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Mon Oct 18 22:30:40 2021 +0800

    [gnc-pricedb] gnc_price_list_equal: avoid 4 g_list_length calls

commit 23e528f51ade50566dd25d7b2f8f6ed8babfcaf4
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Mon Oct 18 22:25:21 2021 +0800

    [utest-gnc-pricedb] add tests for gnc_price_list_equal
    
    Also need to change PWARN which causes test failure, to PINFO



Summary of changes:
 libgnucash/engine/gnc-pricedb.c            | 30 +++++++++++++----------
 libgnucash/engine/test/utest-gnc-pricedb.c | 38 ++++++++++++++++++++++++++----
 2 files changed, 50 insertions(+), 18 deletions(-)