gnucash maint: Fix format warnings by importing (ice-9 format), bis

[Christopher Lam]

Updated	 via  https://github.com/Gnucash/gnucash/commit/9ffee974 (commit)
	from  https://github.com/Gnucash/gnucash/commit/a0a4fc89 (commit)



commit 9ffee974752c287b78455d30abfa9e0b2aff2728
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Mon Dec 14 06:02:41 2020 +0800

    Fix format warnings by importing (ice-9 format), bis
    
    * also budget-income-statement.scm



Summary of changes:
 gnucash/report/reports/standard/budget-income-statement.scm | 1 +
 1 file changed, 1 insertion(+)