Merge branch 'ab/t4023-avoid-losing-exit-status-of-diff' into maint-2.39

Test fix. * ab/t4023-avoid-losing-exit-status-of-diff: t4023: fix ignored exit codes of git

Junio C Hamano committed Feb 14, 2023 at 14:15 UTC 81b216e4f7a338a9137a6faac8c41ba880b24cff

No changes.