t / t4101 / diff.3-1on commit commit-tree: add and document --no-gpg-sign (55ca3f9)
   1--- a/frotz
   2+++ b/frotz
   3@@ -1,3 +1,3 @@
   4 a
   5+b
   6 c
   7-b
   8\ No newline at end of file