gnucash stable: [report-utilities.scm] optimise some loops

[Christopher Lam]

Updated	 via  https://github.com/Gnucash/gnucash/commit/8bd2d10c (commit)
	from  https://github.com/Gnucash/gnucash/commit/f71ddb73 (commit)



commit 8bd2d10cff74285583939ec899d42dd5ece5ad98
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Wed May 7 23:25:58 2025 +0800

    [report-utilities.scm] optimise some loops
    
    reduced from O(2*N) for list-ref-safe and O(4*N) for list-set-safe! to
    O(N).



Summary of changes:
 gnucash/report/report-utilities.scm | 28 ++++++++++++++++------------
 1 file changed, 16 insertions(+), 12 deletions(-)