gnucash maint: [gnc-engine-guile.c] return #f when gnc_numeric has error

[Christopher Lam]

Updated	 via  https://github.com/Gnucash/gnucash/commit/8f329921 (commit)
	from  https://github.com/Gnucash/gnucash/commit/d11bdb3e (commit)



commit 8f32992100c6b1ca2554b023d3cf6df2b8aafca7
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Mon Nov 23 07:48:57 2020 +0800

    [gnc-engine-guile.c] return #f when gnc_numeric has error
    
    otherwise it'd throw guile div/0 exception



Summary of changes:
 bindings/guile/gnc-engine-guile.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)