t / t5100 / info0001on commit notes: Don't create (empty) commit when removing non-existing notes (1ee1e43)
   1Author: A (zzz) U Thor (Comment)
   2Email: a.u.thor@example.com
   3Subject: a commit.
   4Date: Fri, 9 Jun 2006 00:44:16 -0700
   5