t / t4101 / diff.3-0on commit var: run setup_git_directory_gently() sooner (2bc8c1a)
   1--- a/frotz
   2+++ b/frotz
   3@@ -1,3 +1,2 @@
   4 a
   5-c
   6-b
   7\ No newline at end of file
   8+b