t / t4101 / diff.2-3on commit Merge 1.5.0.5 in from 'maint' (5bb44a5)
   1--- a/frotz
   2+++ b/frotz
   3@@ -1,2 +1,3 @@
   4 a
   5+c
   6 b
   7\ No newline at end of file