diff -ur testing/case39k.ref testing2/case39k.ref
--- testing/case39k.ref	2021-01-12 18:52:54.000000000 -0500
+++ testing2/case39k.ref	2022-10-09 08:55:13.555920276 -0400
@@ -1,4 +1,5 @@
  diffstat   |binary
+
  diffstat.c |    2 +-
  diffstat.o |binary
  3 files changed, 1 insertion(+), 1 deletion(-)
Only in testing/: case42.pat
Only in testing/: full1.log
Only in testing/: full1.txt
Only in testing2/: full.log
Only in testing2/: full.txt
Only in testing/: short1.log
Only in testing/: short1.txt
Only in testing/: short.log
Only in testing/: short.txt
