t / t4101 / diff.1-2on commit Merge branch 'jl/doc-submodule-update-checkout' (d73e616)
   1--- a/frotz
   2+++ b/frotz
   3@@ -1,3 +1,2 @@
   4 a
   5-b
   6-c
   7+b
   8\ No newline at end of file