gnucash-on-windows master: Update gwenhywfar to 4.99.17rc

[Geert Janssens]

Updated	 via  https://github.com/Gnucash/gnucash-on-windows/commit/c1ca0943 (commit)
	from  https://github.com/Gnucash/gnucash-on-windows/commit/3f17b886 (commit)



commit c1ca0943794545897557c0d81dad6cd069a2b502
Author: Geert Janssens <geert at kobaltwit.be>
Date:   Wed Sep 25 14:44:55 2019 +0200

    Update gwenhywfar to 4.99.17rc



Summary of changes:
 gnucash.modules | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)