t / t4101 / diff.1-2on commit send-pack: release strbuf on error return in send_pack() (872d651)
   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