gnucash maint: Finish the glib 2.67 fixes for CI tests.

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash/commit/c49b45d8 (commit)
	from  https://github.com/Gnucash/gnucash/commit/e9dfd0d9 (commit)



commit c49b45d8f141691a328f81ae73e54b0f0208faa1
Author: John Ralls <jralls at ceridwen.us>
Date:   Mon Mar 22 14:02:37 2021 -0700

    Finish the glib 2.67 fixes for CI tests.



Summary of changes:
 libgnucash/app-utils/test/test-print-parse-amount.cpp | 6 +++---
 libgnucash/app-utils/test/test-scm-query-string.cpp   | 3 +--
 libgnucash/backend/xml/test/test-xml2-is-file.cpp     | 3 +--
 libgnucash/engine/test-core/test-engine-stuff.h       | 2 +-
 4 files changed, 6 insertions(+), 8 deletions(-)