gnucash maint: all online_id getters from import-utilities.c return a new char* which must be g_freed.

[Christopher Lam]

Updated	 via  https://github.com/Gnucash/gnucash/commit/579ba443 (commit)
	from  https://github.com/Gnucash/gnucash/commit/ce4768c3 (commit)



commit 579ba443172fde921fd6526e37a0a30be7d2da5e
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Sun Jul 17 11:54:24 2022 +0800

    all online_id getters from import-utilities.c return a new char* which must be g_freed.



Summary of changes:
 gnucash/import-export/aqb/assistant-ab-initial.c |  3 +-
 gnucash/import-export/import-account-matcher.c   |  6 +-
 gnucash/import-export/import-backend.c           | 70 +++++++++++++-----------
 gnucash/import-export/import-utilities.c         | 41 +++++++++-----
 gnucash/import-export/import-utilities.h         |  6 +-
 5 files changed, 74 insertions(+), 52 deletions(-)