t / t4013 / diff.diff-tree_--pretty_--root_--summary_-r_initialon commit grep: move pattern-type bits support to top-level grep.[ch] (c5c31d3)
   1$ git diff-tree --pretty --root --summary -r initial
   2commit 444ac553ac7612cc88969031b02b3767fb8a353a
   3Author: A U Thor <author@example.com>
   4Date:   Mon Jun 26 00:00:00 2006 +0000
   5
   6    Initial
   7
   8 create mode 100644 dir/sub
   9 create mode 100644 file0
  10 create mode 100644 file2
  11$