gnucash maint: Handle very large denominators in precies from Finance::Quote

[Mike Alexander]

Updated	 via  https://github.com/Gnucash/gnucash/commit/0c21ae35 (commit)
	from  https://github.com/Gnucash/gnucash/commit/e13644df (commit)



commit 0c21ae35221b49c640d1025d66ea024e24db15c2
Author: Mike Alexander <mta at umich.edu>
Date:   Mon Aug 30 03:09:23 2021 -0400

    Handle very large denominators in precies from Finance::Quote
    
    The OpenExchange exchange rate source in Finance::Quote produces
    some ridiculously precise prices like #e6.95253159056541e-5 which
    produce a denominator greater than INT64_MAX.  Use the rationalize
    function to bring them back to reality.



Summary of changes:
 gnucash/price-quotes.scm | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)