gnucash maint: gtk_tree_model_get returns a new char* which must be g_freed

[Christopher Lam]

Updated	 via  https://github.com/Gnucash/gnucash/commit/1d09c69a (commit)
	from  https://github.com/Gnucash/gnucash/commit/fa8a197b (commit)



commit 1d09c69aff7813937b7f0bbc66d620e5c8e09ac1
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Sat Jul 16 17:40:20 2022 +0800

    gtk_tree_model_get returns a new char* which must be g_freed



Summary of changes:
 gnucash/import-export/import-main-matcher.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)