t / t5100 / info0014--scissorson commit packed_ref_iterator_begin(): iterate using `mmapped_ref_iterator` (d1cf155)
   1Author: Junio C Hamano
   2Email: gitster@pobox.com
   3Subject: Teach mailinfo to ignore everything before -- >8 -- mark
   4Date: Thu, 20 Aug 2009 17:18:22 -0700
   5