t / t4101 / diff.2-1on commit sha1_name.c: get rid of get_sha1_with_mode_1() (8c135ea)
   1--- a/frotz
   2+++ b/frotz
   3@@ -1,2 +1,3 @@
   4 a
   5-b
   6\ No newline at end of file
   7+b
   8+c